Finding the Fourth Proportional to 1,613.52, 2,227.50 and 1,090.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,613.52 : 2,227.50 = 1,090.26 : x
2. Step 2: Convert to fraction form
   1,613.52/2,227.50 = 1,090.26/x
3. Step 3: Cross multiply
   1,613.52x = 2,227.50 × 1,090.26
4. Step 4: Simplify right side
   1,613.52x = 2,428,554.15
5. Step 5: Solve for x
   x = 2,428,554.15/1,613.52
6. Step 6: Final answer
   x = 1,505.13