Finding the Fourth Proportional to 2,758.83, 3,807.15 and 1,681.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,758.83 : 3,807.15 = 1,681.79 : x
2. Step 2: Convert to fraction form
   2,758.83/3,807.15 = 1,681.79/x
3. Step 3: Cross multiply
   2,758.83x = 3,807.15 × 1,681.79
4. Step 4: Simplify right side
   2,758.83x = 6,402,807.76
5. Step 5: Solve for x
   x = 6,402,807.76/2,758.83
6. Step 6: Final answer
   x = 2,320.84