Finding the Fourth Proportional to 1,080.06, 1,490.43 and 614.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,080.06 : 1,490.43 = 614.22 : x
2. Step 2: Convert to fraction form
   1,080.06/1,490.43 = 614.22/x
3. Step 3: Cross multiply
   1,080.06x = 1,490.43 × 614.22
4. Step 4: Simplify right side
   1,080.06x = 915,451.91
5. Step 5: Solve for x
   x = 915,451.91/1,080.06
6. Step 6: Final answer
   x = 847.59