Finding the Fourth Proportional to 2,483.42, 3,726.06 and 1,021.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,483.42 : 3,726.06 = 1,021.78 : x
2. Step 2: Convert to fraction form
   2,483.42/3,726.06 = 1,021.78/x
3. Step 3: Cross multiply
   2,483.42x = 3,726.06 × 1,021.78
4. Step 4: Simplify right side
   2,483.42x = 3,807,213.59
5. Step 5: Solve for x
   x = 3,807,213.59/2,483.42
6. Step 6: Final answer
   x = 1,533.05