Finding the Fourth Proportional to 2,030.39, 2,801.99 and 1,146.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,030.39 : 2,801.99 = 1,146.20 : x
2. Step 2: Convert to fraction form
   2,030.39/2,801.99 = 1,146.20/x
3. Step 3: Cross multiply
   2,030.39x = 2,801.99 × 1,146.20
4. Step 4: Simplify right side
   2,030.39x = 3,211,621.20
5. Step 5: Solve for x
   x = 3,211,621.20/2,030.39
6. Step 6: Final answer
   x = 1,581.78