Finding the Fourth Proportional to 1,479.98, 2,042.34 and 807.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,479.98 : 2,042.34 = 807.79 : x
2. Step 2: Convert to fraction form
   1,479.98/2,042.34 = 807.79/x
3. Step 3: Cross multiply
   1,479.98x = 2,042.34 × 807.79
4. Step 4: Simplify right side
   1,479.98x = 1,649,781.83
5. Step 5: Solve for x
   x = 1,649,781.83/1,479.98
6. Step 6: Final answer
   x = 1,114.73