Finding the Fourth Proportional to 1,112.81, 1,532.52 and 1,109.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.81 : 1,532.52 = 1,109.50 : x
2. Step 2: Convert to fraction form
   1,112.81/1,532.52 = 1,109.50/x
3. Step 3: Cross multiply
   1,112.81x = 1,532.52 × 1,109.50
4. Step 4: Simplify right side
   1,112.81x = 1,700,327.11
5. Step 5: Solve for x
   x = 1,700,327.11/1,112.81
6. Step 6: Final answer
   x = 1,527.97