Finding the Fourth Proportional to 1,477.91, 2,039.43 and 814.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.91 : 2,039.43 = 814.77 : x
2. Step 2: Convert to fraction form
   1,477.91/2,039.43 = 814.77/x
3. Step 3: Cross multiply
   1,477.91x = 2,039.43 × 814.77
4. Step 4: Simplify right side
   1,477.91x = 1,661,663.33
5. Step 5: Solve for x
   x = 1,661,663.33/1,477.91
6. Step 6: Final answer
   x = 1,124.33