Finding the Fourth Proportional to 2,521.62, 3,480.48 and 1,637.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,521.62 : 3,480.48 = 1,637.34 : x
2. Step 2: Convert to fraction form
   2,521.62/3,480.48 = 1,637.34/x
3. Step 3: Cross multiply
   2,521.62x = 3,480.48 × 1,637.34
4. Step 4: Simplify right side
   2,521.62x = 5,698,729.12
5. Step 5: Solve for x
   x = 5,698,729.12/2,521.62
6. Step 6: Final answer
   x = 2,259.95