Finding the Fourth Proportional to 2,101.13, 2,898.56 and 1,354.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.13 : 2,898.56 = 1,354.72 : x
2. Step 2: Convert to fraction form
   2,101.13/2,898.56 = 1,354.72/x
3. Step 3: Cross multiply
   2,101.13x = 2,898.56 × 1,354.72
4. Step 4: Simplify right side
   2,101.13x = 3,926,733.34
5. Step 5: Solve for x
   x = 3,926,733.34/2,101.13
6. Step 6: Final answer
   x = 1,868.87