Finding the Fourth Proportional to 2,801.17, 4,198.98 and 1,155.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,801.17 : 4,198.98 = 1,155.43 : x
2. Step 2: Convert to fraction form
   2,801.17/4,198.98 = 1,155.43/x
3. Step 3: Cross multiply
   2,801.17x = 4,198.98 × 1,155.43
4. Step 4: Simplify right side
   2,801.17x = 4,851,606.47
5. Step 5: Solve for x
   x = 4,851,606.47/2,801.17
6. Step 6: Final answer
   x = 1,732.00