Finding the Fourth Proportional to 7,002.92, 10,502.86 and 2,071.72

Step by Step Solution

1. Step 1: Write the proportion equation
   7,002.92 : 10,502.86 = 2,071.72 : x
2. Step 2: Convert to fraction form
   7,002.92/10,502.86 = 2,071.72/x
3. Step 3: Cross multiply
   7,002.92x = 10,502.86 × 2,071.72
4. Step 4: Simplify right side
   7,002.92x = 21,758,985.12
5. Step 5: Solve for x
   x = 21,758,985.12/7,002.92
6. Step 6: Final answer
   x = 3,107.13