Finding the Fourth Proportional to 1,807.16, 2,494.32 and 1,109.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.16 : 2,494.32 = 1,109.12 : x
2. Step 2: Convert to fraction form
   1,807.16/2,494.32 = 1,109.12/x
3. Step 3: Cross multiply
   1,807.16x = 2,494.32 × 1,109.12
4. Step 4: Simplify right side
   1,807.16x = 2,766,500.20
5. Step 5: Solve for x
   x = 2,766,500.20/1,807.16
6. Step 6: Final answer
   x = 1,530.86