Finding the Fourth Proportional to 904,499.55, 1,355,856.53 and 505,331.55

Step by Step Solution

1. Step 1: Write the proportion equation
   904,499.55 : 1,355,856.53 = 505,331.55 : x
2. Step 2: Convert to fraction form
   904,499.55/1,355,856.53 = 505,331.55/x
3. Step 3: Cross multiply
   904,499.55x = 1,355,856.53 × 505,331.55
4. Step 4: Simplify right side
   904,499.55x = 685,157,079,355.86
5. Step 5: Solve for x
   x = 685,157,079,355.86/904,499.55
6. Step 6: Final answer
   x = 757,498.53