Finding the Fourth Proportional to 1,111.50, 1,533.79 and 614.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.50 : 1,533.79 = 614.14 : x
2. Step 2: Convert to fraction form
   1,111.50/1,533.79 = 614.14/x
3. Step 3: Cross multiply
   1,111.50x = 1,533.79 × 614.14
4. Step 4: Simplify right side
   1,111.50x = 941,966.05
5. Step 5: Solve for x
   x = 941,966.05/1,111.50
6. Step 6: Final answer
   x = 847.47