Finding the Fourth Proportional to 1,587,724,362.67, 2,191,061,423.42 and 882,861,210.85

Step by Step Solution

1. Step 1: Write the proportion equation
   1,587,724,362.67 : 2,191,061,423.42 = 882,861,210.85 : x
2. Step 2: Convert to fraction form
   1,587,724,362.67/2,191,061,423.42 = 882,861,210.85/x
3. Step 3: Cross multiply
   1,587,724,362.67x = 2,191,061,423.42 × 882,861,210.85
4. Step 4: Simplify right side
   1,587,724,362.67x = 1,934,403,141,327,305,984
5. Step 5: Solve for x
   x = 1,934,403,141,327,305,984/1,587,724,362.67
6. Step 6: Final answer
   x = 1,218,349,473.50