Finding the Fourth Proportional to 702,734.72, 1,052,402.70 and 402,304.10

Step by Step Solution

1. Step 1: Write the proportion equation
   702,734.72 : 1,052,402.70 = 402,304.10 : x
2. Step 2: Convert to fraction form
   702,734.72/1,052,402.70 = 402,304.10/x
3. Step 3: Cross multiply
   702,734.72x = 1,052,402.70 × 402,304.10
4. Step 4: Simplify right side
   702,734.72x = 423,385,921,061.07
5. Step 5: Solve for x
   x = 423,385,921,061.07/702,734.72
6. Step 6: Final answer
   x = 602,483.28