Finding the Fourth Proportional to 2,891.78, 4,337.86 and 1,160.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,891.78 : 4,337.86 = 1,160.18 : x
2. Step 2: Convert to fraction form
   2,891.78/4,337.86 = 1,160.18/x
3. Step 3: Cross multiply
   2,891.78x = 4,337.86 × 1,160.18
4. Step 4: Simplify right side
   2,891.78x = 5,032,698.41
5. Step 5: Solve for x
   x = 5,032,698.41/2,891.78
6. Step 6: Final answer
   x = 1,740.35