Finding the Fourth Proportional to 3,689.07, 5,090.32 and 2,196.93

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689.07 : 5,090.32 = 2,196.93 : x
2. Step 2: Convert to fraction form
   3,689.07/5,090.32 = 2,196.93/x
3. Step 3: Cross multiply
   3,689.07x = 5,090.32 × 2,196.93
4. Step 4: Simplify right side
   3,689.07x = 11,183,076.72
5. Step 5: Solve for x
   x = 11,183,076.72/3,689.07
6. Step 6: Final answer
   x = 3,031.41