Finding the Fourth Proportional to 5,247.59, 7,870.77 and 1,351.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,247.59 : 7,870.77 = 1,351.69 : x
2. Step 2: Convert to fraction form
   5,247.59/7,870.77 = 1,351.69/x
3. Step 3: Cross multiply
   5,247.59x = 7,870.77 × 1,351.69
4. Step 4: Simplify right side
   5,247.59x = 10,638,821.42
5. Step 5: Solve for x
   x = 10,638,821.42/5,247.59
6. Step 6: Final answer
   x = 2,027.37