Finding the Fourth Proportional to 1,038,020.18, 1,432,503.42 and 602,403.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,038,020.18 : 1,432,503.42 = 602,403.98 : x
2. Step 2: Convert to fraction form
   1,038,020.18/1,432,503.42 = 602,403.98/x
3. Step 3: Cross multiply
   1,038,020.18x = 1,432,503.42 × 602,403.98
4. Step 4: Simplify right side
   1,038,020.18x = 862,945,761,571.61
5. Step 5: Solve for x
   x = 862,945,761,571.61/1,038,020.18
6. Step 6: Final answer
   x = 831,338.14