Finding the Fourth Proportional to 2,099.45, 3,151.91 and 1,612.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.45 : 3,151.91 = 1,612.84 : x
2. Step 2: Convert to fraction form
   2,099.45/3,151.91 = 1,612.84/x
3. Step 3: Cross multiply
   2,099.45x = 3,151.91 × 1,612.84
4. Step 4: Simplify right side
   2,099.45x = 5,083,526.52
5. Step 5: Solve for x
   x = 5,083,526.52/2,099.45
6. Step 6: Final answer
   x = 2,421.36