Finding the Fourth Proportional to 2,606.62, 3,908.16 and 1,372.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.62 : 3,908.16 = 1,372.72 : x
2. Step 2: Convert to fraction form
   2,606.62/3,908.16 = 1,372.72/x
3. Step 3: Cross multiply
   2,606.62x = 3,908.16 × 1,372.72
4. Step 4: Simplify right side
   2,606.62x = 5,364,809.40
5. Step 5: Solve for x
   x = 5,364,809.40/2,606.62
6. Step 6: Final answer
   x = 2,058.15