Finding the Fourth Proportional to 2,931.58, 4,393.41 and 1,080.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,931.58 : 4,393.41 = 1,080.96 : x
2. Step 2: Convert to fraction form
   2,931.58/4,393.41 = 1,080.96/x
3. Step 3: Cross multiply
   2,931.58x = 4,393.41 × 1,080.96
4. Step 4: Simplify right side
   2,931.58x = 4,749,100.47
5. Step 5: Solve for x
   x = 4,749,100.47/2,931.58
6. Step 6: Final answer
   x = 1,619.98