Finding the Fourth Proportional to 1,478.99, 2,041.01 and 815.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478.99 : 2,041.01 = 815.83 : x
2. Step 2: Convert to fraction form
   1,478.99/2,041.01 = 815.83/x
3. Step 3: Cross multiply
   1,478.99x = 2,041.01 × 815.83
4. Step 4: Simplify right side
   1,478.99x = 1,665,114.13
5. Step 5: Solve for x
   x = 1,665,114.13/1,478.99
6. Step 6: Final answer
   x = 1,125.84