Finding the Fourth Proportional to 1,111.69, 1,534.19 and 614.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.69 : 1,534.19 = 614.39 : x
2. Step 2: Convert to fraction form
   1,111.69/1,534.19 = 614.39/x
3. Step 3: Cross multiply
   1,111.69x = 1,534.19 × 614.39
4. Step 4: Simplify right side
   1,111.69x = 942,583.71
5. Step 5: Solve for x
   x = 942,583.71/1,111.69
6. Step 6: Final answer
   x = 847.88