Finding the Fourth Proportional to 2,101.27, 2,899.07 and 1,353.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.27 : 2,899.07 = 1,353.91 : x
2. Step 2: Convert to fraction form
   2,101.27/2,899.07 = 1,353.91/x
3. Step 3: Cross multiply
   2,101.27x = 2,899.07 × 1,353.91
4. Step 4: Simplify right side
   2,101.27x = 3,925,079.86
5. Step 5: Solve for x
   x = 3,925,079.86/2,101.27
6. Step 6: Final answer
   x = 1,867.96