Finding the Fourth Proportional to 2,116.91, 2,919.88 and 1,488.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.91 : 2,919.88 = 1,488.76 : x
2. Step 2: Convert to fraction form
   2,116.91/2,919.88 = 1,488.76/x
3. Step 3: Cross multiply
   2,116.91x = 2,919.88 × 1,488.76
4. Step 4: Simplify right side
   2,116.91x = 4,346,995.11
5. Step 5: Solve for x
   x = 4,346,995.11/2,116.91
6. Step 6: Final answer
   x = 2,053.46