Finding the Fourth Proportional to 1,111.37, 1,533.78 and 614.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.37 : 1,533.78 = 614.06 : x
2. Step 2: Convert to fraction form
   1,111.37/1,533.78 = 614.06/x
3. Step 3: Cross multiply
   1,111.37x = 1,533.78 × 614.06
4. Step 4: Simplify right side
   1,111.37x = 941,825.28
5. Step 5: Solve for x
   x = 941,825.28/1,111.37
6. Step 6: Final answer
   x = 847.45