Finding the Fourth Proportional to 1,695.60, 2,540.88 and 1,109.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,695.60 : 2,540.88 = 1,109.52 : x
2. Step 2: Convert to fraction form
   1,695.60/2,540.88 = 1,109.52/x
3. Step 3: Cross multiply
   1,695.60x = 2,540.88 × 1,109.52
4. Step 4: Simplify right side
   1,695.60x = 2,819,157.18
5. Step 5: Solve for x
   x = 2,819,157.18/1,695.60
6. Step 6: Final answer
   x = 1,662.63