Finding the Fourth Proportional to 2,706.72, 4,061.43 and 1,246.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,706.72 : 4,061.43 = 1,246.90 : x
2. Step 2: Convert to fraction form
   2,706.72/4,061.43 = 1,246.90/x
3. Step 3: Cross multiply
   2,706.72x = 4,061.43 × 1,246.90
4. Step 4: Simplify right side
   2,706.72x = 5,064,176.76
5. Step 5: Solve for x
   x = 5,064,176.76/2,706.72
6. Step 6: Final answer
   x = 1,870.96