Finding the Fourth Proportional to 1,111.87, 1,534.34 and 614.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.87 : 1,534.34 = 614.50 : x
2. Step 2: Convert to fraction form
   1,111.87/1,534.34 = 614.50/x
3. Step 3: Cross multiply
   1,111.87x = 1,534.34 × 614.50
4. Step 4: Simplify right side
   1,111.87x = 942,851.93
5. Step 5: Solve for x
   x = 942,851.93/1,111.87
6. Step 6: Final answer
   x = 847.99