Finding the Fourth Proportional to 1,092.56, 1,488.80 and 1,088.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092.56 : 1,488.80 = 1,088.72 : x
2. Step 2: Convert to fraction form
   1,092.56/1,488.80 = 1,088.72/x
3. Step 3: Cross multiply
   1,092.56x = 1,488.80 × 1,088.72
4. Step 4: Simplify right side
   1,092.56x = 1,620,886.34
5. Step 5: Solve for x
   x = 1,620,886.34/1,092.56
6. Step 6: Final answer
   x = 1,483.57