Finding the Fourth Proportional to 2,638.38, 3,641.03 and 1,590.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.38 : 3,641.03 = 1,590.51 : x
2. Step 2: Convert to fraction form
   2,638.38/3,641.03 = 1,590.51/x
3. Step 3: Cross multiply
   2,638.38x = 3,641.03 × 1,590.51
4. Step 4: Simplify right side
   2,638.38x = 5,791,094.63
5. Step 5: Solve for x
   x = 5,791,094.63/2,638.38
6. Step 6: Final answer
   x = 2,194.94