Finding the Fourth Proportional to 6,909.38, 10,364.01 and 1,715.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,909.38 : 10,364.01 = 1,715.25 : x
2. Step 2: Convert to fraction form
   6,909.38/10,364.01 = 1,715.25/x
3. Step 3: Cross multiply
   6,909.38x = 10,364.01 × 1,715.25
4. Step 4: Simplify right side
   6,909.38x = 17,776,868.15
5. Step 5: Solve for x
   x = 17,776,868.15/6,909.38
6. Step 6: Final answer
   x = 2,572.86