Finding the Fourth Proportional to 2,099.82, 3,146.63 and 1,869.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.82 : 3,146.63 = 1,869.15 : x
2. Step 2: Convert to fraction form
   2,099.82/3,146.63 = 1,869.15/x
3. Step 3: Cross multiply
   2,099.82x = 3,146.63 × 1,869.15
4. Step 4: Simplify right side
   2,099.82x = 5,881,523.46
5. Step 5: Solve for x
   x = 5,881,523.46/2,099.82
6. Step 6: Final answer
   x = 2,800.97