Finding the Fourth Proportional to 2,386.09, 3,580.22 and 1,087.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,386.09 : 3,580.22 = 1,087.93 : x
2. Step 2: Convert to fraction form
   2,386.09/3,580.22 = 1,087.93/x
3. Step 3: Cross multiply
   2,386.09x = 3,580.22 × 1,087.93
4. Step 4: Simplify right side
   2,386.09x = 3,895,023.30
5. Step 5: Solve for x
   x = 3,895,023.30/2,386.09
6. Step 6: Final answer
   x = 1,632.39