Finding the Fourth Proportional to 2,958.59, 4,434.80 and 1,108.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,958.59 : 4,434.80 = 1,108.91 : x
2. Step 2: Convert to fraction form
   2,958.59/4,434.80 = 1,108.91/x
3. Step 3: Cross multiply
   2,958.59x = 4,434.80 × 1,108.91
4. Step 4: Simplify right side
   2,958.59x = 4,917,799.61
5. Step 5: Solve for x
   x = 4,917,799.61/2,958.59
6. Step 6: Final answer
   x = 1,662.21