Finding the Fourth Proportional to 2,102.29, 2,900.20 and 1,429.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,102.29 : 2,900.20 = 1,429.27 : x
2. Step 2: Convert to fraction form
   2,102.29/2,900.20 = 1,429.27/x
3. Step 3: Cross multiply
   2,102.29x = 2,900.20 × 1,429.27
4. Step 4: Simplify right side
   2,102.29x = 4,145,168.85
5. Step 5: Solve for x
   x = 4,145,168.85/2,102.29
6. Step 6: Final answer
   x = 1,971.74