Finding the Fourth Proportional to 2,638.02, 3,953.36 and 2,290.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.02 : 3,953.36 = 2,290.52 : x
2. Step 2: Convert to fraction form
   2,638.02/3,953.36 = 2,290.52/x
3. Step 3: Cross multiply
   2,638.02x = 3,953.36 × 2,290.52
4. Step 4: Simplify right side
   2,638.02x = 9,055,250.15
5. Step 5: Solve for x
   x = 9,055,250.15/2,638.02
6. Step 6: Final answer
   x = 3,432.59