Finding the Fourth Proportional to 3,666.53, 5,059.82 and 1,987.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,666.53 : 5,059.82 = 1,987.94 : x
2. Step 2: Convert to fraction form
   3,666.53/5,059.82 = 1,987.94/x
3. Step 3: Cross multiply
   3,666.53x = 5,059.82 × 1,987.94
4. Step 4: Simplify right side
   3,666.53x = 10,058,618.57
5. Step 5: Solve for x
   x = 10,058,618.57/3,666.53
6. Step 6: Final answer
   x = 2,743.36