Finding the Fourth Proportional to 1,477.95, 2,039.57 and 814.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,477.95 : 2,039.57 = 814.79 : x
2. Step 2: Convert to fraction form
   1,477.95/2,039.57 = 814.79/x
3. Step 3: Cross multiply
   1,477.95x = 2,039.57 × 814.79
4. Step 4: Simplify right side
   1,477.95x = 1,661,825.32
5. Step 5: Solve for x
   x = 1,661,825.32/1,477.95
6. Step 6: Final answer
   x = 1,124.42