Finding the Fourth Proportional to 1,895.20, 2,616.10 and 1,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,895.20 : 2,616.10 = 1,109.50 : x
2. Step 2: Convert to fraction form
   1,895.20/2,616.10 = 1,109.50/x
3. Step 3: Cross multiply
   1,895.20x = 2,616.10 × 1,109.50
4. Step 4: Simplify right side
   1,895.20x = 2,902,562.95
5. Step 5: Solve for x
   x = 2,902,562.95/1,895.20
6. Step 6: Final answer
   x = 1,531.53