Finding the Fourth Proportional to 1,993.61, 2,751.39 and 1,154.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.61 : 2,751.39 = 1,154.30 : x
2. Step 2: Convert to fraction form
   1,993.61/2,751.39 = 1,154.30/x
3. Step 3: Cross multiply
   1,993.61x = 2,751.39 × 1,154.30
4. Step 4: Simplify right side
   1,993.61x = 3,175,915.72
5. Step 5: Solve for x
   x = 3,175,915.72/1,993.61
6. Step 6: Final answer
   x = 1,593.05