Finding the Fourth Proportional to 1,895.20, 2,615.36 and 1,109.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,895.20 : 2,615.36 = 1,109.10 : x
2. Step 2: Convert to fraction form
   1,895.20/2,615.36 = 1,109.10/x
3. Step 3: Cross multiply
   1,895.20x = 2,615.36 × 1,109.10
4. Step 4: Simplify right side
   1,895.20x = 2,900,695.78
5. Step 5: Solve for x
   x = 2,900,695.78/1,895.20
6. Step 6: Final answer
   x = 1,530.55