Finding the Fourth Proportional to 2,167,430.29, 2,991,152.27 and 1,200,560.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167,430.29 : 2,991,152.27 = 1,200,560.47 : x
2. Step 2: Convert to fraction form
   2,167,430.29/2,991,152.27 = 1,200,560.47/x
3. Step 3: Cross multiply
   2,167,430.29x = 2,991,152.27 × 1,200,560.47
4. Step 4: Simplify right side
   2,167,430.29x = 3,591,059,177,351.01
5. Step 5: Solve for x
   x = 3,591,059,177,351.01/2,167,430.29
6. Step 6: Final answer
   x = 1,656,827.99