Finding the Fourth Proportional to 2,099.86, 3,151.01 and 1,162.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.86 : 3,151.01 = 1,162.90 : x
2. Step 2: Convert to fraction form
   2,099.86/3,151.01 = 1,162.90/x
3. Step 3: Cross multiply
   2,099.86x = 3,151.01 × 1,162.90
4. Step 4: Simplify right side
   2,099.86x = 3,664,309.53
5. Step 5: Solve for x
   x = 3,664,309.53/2,099.86
6. Step 6: Final answer
   x = 1,745.03