Finding the Fourth Proportional to 1,111.86, 1,534.41 and 614.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.86 : 1,534.41 = 614.47 : x
2. Step 2: Convert to fraction form
   1,111.86/1,534.41 = 614.47/x
3. Step 3: Cross multiply
   1,111.86x = 1,534.41 × 614.47
4. Step 4: Simplify right side
   1,111.86x = 942,848.91
5. Step 5: Solve for x
   x = 942,848.91/1,111.86
6. Step 6: Final answer
   x = 847.99