Finding the Fourth Proportional to 2,899.40, 4,345.42 and 1,357

Step by Step Solution

1. Step 1: Write the proportion equation
   2,899.40 : 4,345.42 = 1,357 : x
2. Step 2: Convert to fraction form
   2,899.40/4,345.42 = 1,357/x
3. Step 3: Cross multiply
   2,899.40x = 4,345.42 × 1,357
4. Step 4: Simplify right side
   2,899.40x = 5,896,734.94
5. Step 5: Solve for x
   x = 5,896,734.94/2,899.40
6. Step 6: Final answer
   x = 2,033.78