Finding the Fourth Proportional to 1,150.90, 1,588.23 and 653.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.90 : 1,588.23 = 653.55 : x
2. Step 2: Convert to fraction form
   1,150.90/1,588.23 = 653.55/x
3. Step 3: Cross multiply
   1,150.90x = 1,588.23 × 653.55
4. Step 4: Simplify right side
   1,150.90x = 1,037,987.72
5. Step 5: Solve for x
   x = 1,037,987.72/1,150.90
6. Step 6: Final answer
   x = 901.89