Finding the Fourth Proportional to 2,526.48, 3,786.42 and 1,294.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.48 : 3,786.42 = 1,294.20 : x
2. Step 2: Convert to fraction form
   2,526.48/3,786.42 = 1,294.20/x
3. Step 3: Cross multiply
   2,526.48x = 3,786.42 × 1,294.20
4. Step 4: Simplify right side
   2,526.48x = 4,900,384.76
5. Step 5: Solve for x
   x = 4,900,384.76/2,526.48
6. Step 6: Final answer
   x = 1,939.61