Finding the Fourth Proportional to 1,079.82, 1,490.15 and 614.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,079.82 : 1,490.15 = 614.07 : x
2. Step 2: Convert to fraction form
   1,079.82/1,490.15 = 614.07/x
3. Step 3: Cross multiply
   1,079.82x = 1,490.15 × 614.07
4. Step 4: Simplify right side
   1,079.82x = 915,053.34
5. Step 5: Solve for x
   x = 915,053.34/1,079.82
6. Step 6: Final answer
   x = 847.41