Finding the Fourth Proportional to 1,477.59, 2,039.10 and 814.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.59 : 2,039.10 = 814.56 : x
2. Step 2: Convert to fraction form
   1,477.59/2,039.10 = 814.56/x
3. Step 3: Cross multiply
   1,477.59x = 2,039.10 × 814.56
4. Step 4: Simplify right side
   1,477.59x = 1,660,969.30
5. Step 5: Solve for x
   x = 1,660,969.30/1,477.59
6. Step 6: Final answer
   x = 1,124.11