Finding the Fourth Proportional to 1,090.26, 1,632.15 and 1,088.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,090.26 : 1,632.15 = 1,088.82 : x
2. Step 2: Convert to fraction form
   1,090.26/1,632.15 = 1,088.82/x
3. Step 3: Cross multiply
   1,090.26x = 1,632.15 × 1,088.82
4. Step 4: Simplify right side
   1,090.26x = 1,777,117.56
5. Step 5: Solve for x
   x = 1,777,117.56/1,090.26
6. Step 6: Final answer
   x = 1,629.99