Finding the Fourth Proportional to 1,111.67, 1,534.05 and 614.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.67 : 1,534.05 = 614.33 : x
2. Step 2: Convert to fraction form
   1,111.67/1,534.05 = 614.33/x
3. Step 3: Cross multiply
   1,111.67x = 1,534.05 × 614.33
4. Step 4: Simplify right side
   1,111.67x = 942,412.94
5. Step 5: Solve for x
   x = 942,412.94/1,111.67
6. Step 6: Final answer
   x = 847.75