Finding the Fourth Proportional to 1,403.29, 1,938.27 and 1,112.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.29 : 1,938.27 = 1,112.41 : x
2. Step 2: Convert to fraction form
   1,403.29/1,938.27 = 1,112.41/x
3. Step 3: Cross multiply
   1,403.29x = 1,938.27 × 1,112.41
4. Step 4: Simplify right side
   1,403.29x = 2,156,150.93
5. Step 5: Solve for x
   x = 2,156,150.93/1,403.29
6. Step 6: Final answer
   x = 1,536.50