Finding the Fourth Proportional to 2,106.10, 3,155.55 and 1,488.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,106.10 : 3,155.55 = 1,488.62 : x
2. Step 2: Convert to fraction form
   2,106.10/3,155.55 = 1,488.62/x
3. Step 3: Cross multiply
   2,106.10x = 3,155.55 × 1,488.62
4. Step 4: Simplify right side
   2,106.10x = 4,697,399.06
5. Step 5: Solve for x
   x = 4,697,399.06/2,106.10
6. Step 6: Final answer
   x = 2,230.38