Finding the Fourth Proportional to 1,073.52, 1,480.77 and 876.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,073.52 : 1,480.77 = 876.69 : x
2. Step 2: Convert to fraction form
   1,073.52/1,480.77 = 876.69/x
3. Step 3: Cross multiply
   1,073.52x = 1,480.77 × 876.69
4. Step 4: Simplify right side
   1,073.52x = 1,298,176.25
5. Step 5: Solve for x
   x = 1,298,176.25/1,073.52
6. Step 6: Final answer
   x = 1,209.27