Finding the Fourth Proportional to 2,706.50, 4,058.38 and 1,317.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,706.50 : 4,058.38 = 1,317.76 : x
2. Step 2: Convert to fraction form
   2,706.50/4,058.38 = 1,317.76/x
3. Step 3: Cross multiply
   2,706.50x = 4,058.38 × 1,317.76
4. Step 4: Simplify right side
   2,706.50x = 5,347,970.83
5. Step 5: Solve for x
   x = 5,347,970.83/2,706.50
6. Step 6: Final answer
   x = 1,975.97