Finding the Fourth Proportional to 1,488.22, 2,233.10 and 1,080.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.22 : 2,233.10 = 1,080.72 : x
2. Step 2: Convert to fraction form
   1,488.22/2,233.10 = 1,080.72/x
3. Step 3: Cross multiply
   1,488.22x = 2,233.10 × 1,080.72
4. Step 4: Simplify right side
   1,488.22x = 2,413,355.83
5. Step 5: Solve for x
   x = 2,413,355.83/1,488.22
6. Step 6: Final answer
   x = 1,621.64