Finding the Fourth Proportional to 2,590.37, 3,576.82 and 2,111.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.37 : 3,576.82 = 2,111.90 : x
2. Step 2: Convert to fraction form
   2,590.37/3,576.82 = 2,111.90/x
3. Step 3: Cross multiply
   2,590.37x = 3,576.82 × 2,111.90
4. Step 4: Simplify right side
   2,590.37x = 7,553,886.16
5. Step 5: Solve for x
   x = 7,553,886.16/2,590.37
6. Step 6: Final answer
   x = 2,916.14