Finding the Fourth Proportional to 2,666.96, 3,680.40 and 1,488.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,666.96 : 3,680.40 = 1,488.02 : x
2. Step 2: Convert to fraction form
   2,666.96/3,680.40 = 1,488.02/x
3. Step 3: Cross multiply
   2,666.96x = 3,680.40 × 1,488.02
4. Step 4: Simplify right side
   2,666.96x = 5,476,508.81
5. Step 5: Solve for x
   x = 5,476,508.81/2,666.96
6. Step 6: Final answer
   x = 2,053.46