Finding the Fourth Proportional to 1,913.52, 2,638.58 and 1,250.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,913.52 : 2,638.58 = 1,250.03 : x
2. Step 2: Convert to fraction form
   1,913.52/2,638.58 = 1,250.03/x
3. Step 3: Cross multiply
   1,913.52x = 2,638.58 × 1,250.03
4. Step 4: Simplify right side
   1,913.52x = 3,298,304.50
5. Step 5: Solve for x
   x = 3,298,304.50/1,913.52
6. Step 6: Final answer
   x = 1,723.68