Finding the Fourth Proportional to 2,439.19, 3,659.39 and 707.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,439.19 : 3,659.39 = 707.82 : x
2. Step 2: Convert to fraction form
   2,439.19/3,659.39 = 707.82/x
3. Step 3: Cross multiply
   2,439.19x = 3,659.39 × 707.82
4. Step 4: Simplify right side
   2,439.19x = 2,590,189.43
5. Step 5: Solve for x
   x = 2,590,189.43/2,439.19
6. Step 6: Final answer
   x = 1,061.91