Finding the Fourth Proportional to 1,111.59, 1,533.96 and 614.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.59 : 1,533.96 = 614.23 : x
2. Step 2: Convert to fraction form
   1,111.59/1,533.96 = 614.23/x
3. Step 3: Cross multiply
   1,111.59x = 1,533.96 × 614.23
4. Step 4: Simplify right side
   1,111.59x = 942,200.42
5. Step 5: Solve for x
   x = 942,200.42/1,111.59
6. Step 6: Final answer
   x = 847.62