Finding the Fourth Proportional to 1,507.50, 2,080.47 and 886.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,507.50 : 2,080.47 = 886.62 : x
2. Step 2: Convert to fraction form
   1,507.50/2,080.47 = 886.62/x
3. Step 3: Cross multiply
   1,507.50x = 2,080.47 × 886.62
4. Step 4: Simplify right side
   1,507.50x = 1,844,586.31
5. Step 5: Solve for x
   x = 1,844,586.31/1,507.50
6. Step 6: Final answer
   x = 1,223.61