Finding the Fourth Proportional to 3,490.72, 5,237.86 and 2,321.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,490.72 : 5,237.86 = 2,321.52 : x
2. Step 2: Convert to fraction form
   3,490.72/5,237.86 = 2,321.52/x
3. Step 3: Cross multiply
   3,490.72x = 5,237.86 × 2,321.52
4. Step 4: Simplify right side
   3,490.72x = 12,159,796.75
5. Step 5: Solve for x
   x = 12,159,796.75/3,490.72
6. Step 6: Final answer
   x = 3,483.46