Finding the Fourth Proportional to 2,638.32, 3,641.04 and 1,590.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.32 : 3,641.04 = 1,590.48 : x
2. Step 2: Convert to fraction form
   2,638.32/3,641.04 = 1,590.48/x
3. Step 3: Cross multiply
   2,638.32x = 3,641.04 × 1,590.48
4. Step 4: Simplify right side
   2,638.32x = 5,791,001.30
5. Step 5: Solve for x
   x = 5,791,001.30/2,638.32
6. Step 6: Final answer
   x = 2,194.96