Finding the Fourth Proportional to 1,487.51, 2,233.31 and 757.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,487.51 : 2,233.31 = 757.59 : x
2. Step 2: Convert to fraction form
   1,487.51/2,233.31 = 757.59/x
3. Step 3: Cross multiply
   1,487.51x = 2,233.31 × 757.59
4. Step 4: Simplify right side
   1,487.51x = 1,691,929.53
5. Step 5: Solve for x
   x = 1,691,929.53/1,487.51
6. Step 6: Final answer
   x = 1,137.43