Finding the Fourth Proportional to 1,039,317, 1,434,261.78 and 562,389

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,317 : 1,434,261.78 = 562,389 : x
2. Step 2: Convert to fraction form
   1,039,317/1,434,261.78 = 562,389/x
3. Step 3: Cross multiply
   1,039,317x = 1,434,261.78 × 562,389
4. Step 4: Simplify right side
   1,039,317x = 806,613,048,192.42
5. Step 5: Solve for x
   x = 806,613,048,192.42/1,039,317
6. Step 6: Final answer
   x = 776,099.16