Finding the Fourth Proportional to 2,525.59, 3,486.98 and 1,642.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,525.59 : 3,486.98 = 1,642.89 : x
2. Step 2: Convert to fraction form
   2,525.59/3,486.98 = 1,642.89/x
3. Step 3: Cross multiply
   2,525.59x = 3,486.98 × 1,642.89
4. Step 4: Simplify right side
   2,525.59x = 5,728,728.68
5. Step 5: Solve for x
   x = 5,728,728.68/2,525.59
6. Step 6: Final answer
   x = 2,268.28