Finding the Fourth Proportional to 2,666.88, 3,680.28 and 1,488.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.88 : 3,680.28 = 1,488.06 : x
2. Step 2: Convert to fraction form
   2,666.88/3,680.28 = 1,488.06/x
3. Step 3: Cross multiply
   2,666.88x = 3,680.28 × 1,488.06
4. Step 4: Simplify right side
   2,666.88x = 5,476,477.46
5. Step 5: Solve for x
   x = 5,476,477.46/2,666.88
6. Step 6: Final answer
   x = 2,053.51