Finding the Fourth Proportional to 2,101.29, 2,899.73 and 1,157.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.29 : 2,899.73 = 1,157.10 : x
2. Step 2: Convert to fraction form
   2,101.29/2,899.73 = 1,157.10/x
3. Step 3: Cross multiply
   2,101.29x = 2,899.73 × 1,157.10
4. Step 4: Simplify right side
   2,101.29x = 3,355,271.80
5. Step 5: Solve for x
   x = 3,355,271.80/2,101.29
6. Step 6: Final answer
   x = 1,596.77