Finding the Fourth Proportional to 2,300.64, 3,171.20 and 1,554.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,300.64 : 3,171.20 = 1,554.36 : x
2. Step 2: Convert to fraction form
   2,300.64/3,171.20 = 1,554.36/x
3. Step 3: Cross multiply
   2,300.64x = 3,171.20 × 1,554.36
4. Step 4: Simplify right side
   2,300.64x = 4,929,178.66
5. Step 5: Solve for x
   x = 4,929,178.66/2,300.64
6. Step 6: Final answer
   x = 2,142.52