Finding the Fourth Proportional to 2,146.10, 2,962.47 and 1,816.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.10 : 2,962.47 = 1,816.22 : x
2. Step 2: Convert to fraction form
   2,146.10/2,962.47 = 1,816.22/x
3. Step 3: Cross multiply
   2,146.10x = 2,962.47 × 1,816.22
4. Step 4: Simplify right side
   2,146.10x = 5,380,511.48
5. Step 5: Solve for x
   x = 5,380,511.48/2,146.10
6. Step 6: Final answer
   x = 2,507.12