Finding the Fourth Proportional to 3,681.16, 5,079.98 and 2,087.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,681.16 : 5,079.98 = 2,087.76 : x
2. Step 2: Convert to fraction form
   3,681.16/5,079.98 = 2,087.76/x
3. Step 3: Cross multiply
   3,681.16x = 5,079.98 × 2,087.76
4. Step 4: Simplify right side
   3,681.16x = 10,605,779.04
5. Step 5: Solve for x
   x = 10,605,779.04/3,681.16
6. Step 6: Final answer
   x = 2,881.10