Finding the Fourth Proportional to 2,685.72, 3,706.29 and 1,506.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,685.72 : 3,706.29 = 1,506.78 : x
2. Step 2: Convert to fraction form
   2,685.72/3,706.29 = 1,506.78/x
3. Step 3: Cross multiply
   2,685.72x = 3,706.29 × 1,506.78
4. Step 4: Simplify right side
   2,685.72x = 5,584,563.65
5. Step 5: Solve for x
   x = 5,584,563.65/2,685.72
6. Step 6: Final answer
   x = 2,079.35