Finding the Fourth Proportional to 1,111.56, 1,533.92 and 614.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.56 : 1,533.92 = 614.22 : x
2. Step 2: Convert to fraction form
   1,111.56/1,533.92 = 614.22/x
3. Step 3: Cross multiply
   1,111.56x = 1,533.92 × 614.22
4. Step 4: Simplify right side
   1,111.56x = 942,164.34
5. Step 5: Solve for x
   x = 942,164.34/1,111.56
6. Step 6: Final answer
   x = 847.61