Finding the Fourth Proportional to 851,081.99, 1,174,479.12 and 469,144.31

Step by Step Solution

1. Step 1: Write the proportion equation
   851,081.99 : 1,174,479.12 = 469,144.31 : x
2. Step 2: Convert to fraction form
   851,081.99/1,174,479.12 = 469,144.31/x
3. Step 3: Cross multiply
   851,081.99x = 1,174,479.12 × 469,144.31
4. Step 4: Simplify right side
   851,081.99x = 551,000,190,489.41
5. Step 5: Solve for x
   x = 551,000,190,489.41/851,081.99
6. Step 6: Final answer
   x = 647,411.41