Finding the Fourth Proportional to 2,606.16, 3,597.72 and 1,976.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.16 : 3,597.72 = 1,976.80 : x
2. Step 2: Convert to fraction form
   2,606.16/3,597.72 = 1,976.80/x
3. Step 3: Cross multiply
   2,606.16x = 3,597.72 × 1,976.80
4. Step 4: Simplify right side
   2,606.16x = 7,111,972.90
5. Step 5: Solve for x
   x = 7,111,972.90/2,606.16
6. Step 6: Final answer
   x = 2,728.91