Finding the Fourth Proportional to 1,086.07, 1,498.74 and 614.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.07 : 1,498.74 = 614.02 : x
2. Step 2: Convert to fraction form
   1,086.07/1,498.74 = 614.02/x
3. Step 3: Cross multiply
   1,086.07x = 1,498.74 × 614.02
4. Step 4: Simplify right side
   1,086.07x = 920,256.33
5. Step 5: Solve for x
   x = 920,256.33/1,086.07
6. Step 6: Final answer
   x = 847.33