Finding the Fourth Proportional to 1,111.55, 1,533.98 and 614.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.55 : 1,533.98 = 614.23 : x
2. Step 2: Convert to fraction form
   1,111.55/1,533.98 = 614.23/x
3. Step 3: Cross multiply
   1,111.55x = 1,533.98 × 614.23
4. Step 4: Simplify right side
   1,111.55x = 942,214.24
5. Step 5: Solve for x
   x = 942,214.24/1,111.55
6. Step 6: Final answer
   x = 847.66