Finding the Fourth Proportional to 1,820,771.72, 2,731,288.80 and 698,840.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,820,771.72 : 2,731,288.80 = 698,840.72 : x
2. Step 2: Convert to fraction form
   1,820,771.72/2,731,288.80 = 698,840.72/x
3. Step 3: Cross multiply
   1,820,771.72x = 2,731,288.80 × 698,840.72
4. Step 4: Simplify right side
   1,820,771.72x = 1,908,735,826,795.50
5. Step 5: Solve for x
   x = 1,908,735,826,795.50/1,820,771.72
6. Step 6: Final answer
   x = 1,048,311.44