Finding the Fourth Proportional to 2,598.55, 3,897.83 and 1,680.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,598.55 : 3,897.83 = 1,680.01 : x
2. Step 2: Convert to fraction form
   2,598.55/3,897.83 = 1,680.01/x
3. Step 3: Cross multiply
   2,598.55x = 3,897.83 × 1,680.01
4. Step 4: Simplify right side
   2,598.55x = 6,548,387.83
5. Step 5: Solve for x
   x = 6,548,387.83/2,598.55
6. Step 6: Final answer
   x = 2,520.02