Finding the Fourth Proportional to 862,061.95, 1,293,200.28 and 293,399.35

Step by Step Solution

1. Step 1: Write the proportion equation
   862,061.95 : 1,293,200.28 = 293,399.35 : x
2. Step 2: Convert to fraction form
   862,061.95/1,293,200.28 = 293,399.35/x
3. Step 3: Cross multiply
   862,061.95x = 1,293,200.28 × 293,399.35
4. Step 4: Simplify right side
   862,061.95x = 379,424,121,571.82
5. Step 5: Solve for x
   x = 379,424,121,571.82/862,061.95
6. Step 6: Final answer
   x = 440,135.56