Finding the Fourth Proportional to 1,479.15, 2,041.18 and 815.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.15 : 2,041.18 = 815.99 : x
2. Step 2: Convert to fraction form
   1,479.15/2,041.18 = 815.99/x
3. Step 3: Cross multiply
   1,479.15x = 2,041.18 × 815.99
4. Step 4: Simplify right side
   1,479.15x = 1,665,570.22
5. Step 5: Solve for x
   x = 1,665,570.22/1,479.15
6. Step 6: Final answer
   x = 1,126.03