Finding the Fourth Proportional to 903,499.16, 1,247,055.78 and 613,601.36

Step by Step Solution

1. Step 1: Write the proportion equation
   903,499.16 : 1,247,055.78 = 613,601.36 : x
2. Step 2: Convert to fraction form
   903,499.16/1,247,055.78 = 613,601.36/x
3. Step 3: Cross multiply
   903,499.16x = 1,247,055.78 × 613,601.36
4. Step 4: Simplify right side
   903,499.16x = 765,195,122,603.86
5. Step 5: Solve for x
   x = 765,195,122,603.86/903,499.16
6. Step 6: Final answer
   x = 846,924.00