Finding the Fourth Proportional to 2,298.12, 3,171.33 and 1,354.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.12 : 3,171.33 = 1,354.20 : x
2. Step 2: Convert to fraction form
   2,298.12/3,171.33 = 1,354.20/x
3. Step 3: Cross multiply
   2,298.12x = 3,171.33 × 1,354.20
4. Step 4: Simplify right side
   2,298.12x = 4,294,615.09
5. Step 5: Solve for x
   x = 4,294,615.09/2,298.12
6. Step 6: Final answer
   x = 1,868.75