Finding the Fourth Proportional to 1,099.18, 1,527.52 and 1,085.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.18 : 1,527.52 = 1,085.41 : x
2. Step 2: Convert to fraction form
   1,099.18/1,527.52 = 1,085.41/x
3. Step 3: Cross multiply
   1,099.18x = 1,527.52 × 1,085.41
4. Step 4: Simplify right side
   1,099.18x = 1,657,985.48
5. Step 5: Solve for x
   x = 1,657,985.48/1,099.18
6. Step 6: Final answer
   x = 1,508.38