Finding the Fourth Proportional to 2,708.94, 4,061.59 and 1,247.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,708.94 : 4,061.59 = 1,247.30 : x
2. Step 2: Convert to fraction form
   2,708.94/4,061.59 = 1,247.30/x
3. Step 3: Cross multiply
   2,708.94x = 4,061.59 × 1,247.30
4. Step 4: Simplify right side
   2,708.94x = 5,065,994.66
5. Step 5: Solve for x
   x = 5,065,994.66/2,708.94
6. Step 6: Final answer
   x = 1,870.10