Finding the Fourth Proportional to 2,345.22, 3,507.48 and 2,087.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345.22 : 3,507.48 = 2,087.02 : x
2. Step 2: Convert to fraction form
   2,345.22/3,507.48 = 2,087.02/x
3. Step 3: Cross multiply
   2,345.22x = 3,507.48 × 2,087.02
4. Step 4: Simplify right side
   2,345.22x = 7,320,180.91
5. Step 5: Solve for x
   x = 7,320,180.91/2,345.22
6. Step 6: Final answer
   x = 3,121.32