Finding the Fourth Proportional to 1,093.86, 1,515.72 and 1,080.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093.86 : 1,515.72 = 1,080.48 : x
2. Step 2: Convert to fraction form
   1,093.86/1,515.72 = 1,080.48/x
3. Step 3: Cross multiply
   1,093.86x = 1,515.72 × 1,080.48
4. Step 4: Simplify right side
   1,093.86x = 1,637,705.15
5. Step 5: Solve for x
   x = 1,637,705.15/1,093.86
6. Step 6: Final answer
   x = 1,497.18