Finding the Fourth Proportional to 1,807.88, 2,494.89 and 979.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,807.88 : 2,494.89 = 979.88 : x
2. Step 2: Convert to fraction form
   1,807.88/2,494.89 = 979.88/x
3. Step 3: Cross multiply
   1,807.88x = 2,494.89 × 979.88
4. Step 4: Simplify right side
   1,807.88x = 2,444,680.34
5. Step 5: Solve for x
   x = 2,444,680.34/1,807.88
6. Step 6: Final answer
   x = 1,352.24