Finding the Fourth Proportional to 2,715.23, 4,069.69 and 1,251.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,715.23 : 4,069.69 = 1,251.30 : x
2. Step 2: Convert to fraction form
   2,715.23/4,069.69 = 1,251.30/x
3. Step 3: Cross multiply
   2,715.23x = 4,069.69 × 1,251.30
4. Step 4: Simplify right side
   2,715.23x = 5,092,403.10
5. Step 5: Solve for x
   x = 5,092,403.10/2,715.23
6. Step 6: Final answer
   x = 1,875.50