Finding the Fourth Proportional to 1,588.24, 2,192.79 and 1,090.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,588.24 : 2,192.79 = 1,090.72 : x
2. Step 2: Convert to fraction form
   1,588.24/2,192.79 = 1,090.72/x
3. Step 3: Cross multiply
   1,588.24x = 2,192.79 × 1,090.72
4. Step 4: Simplify right side
   1,588.24x = 2,391,719.91
5. Step 5: Solve for x
   x = 2,391,719.91/1,588.24
6. Step 6: Final answer
   x = 1,505.89