Finding the Fourth Proportional to 1,799.78, 2,483.85 and 1,013.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,799.78 : 2,483.85 = 1,013.81 : x
2. Step 2: Convert to fraction form
   1,799.78/2,483.85 = 1,013.81/x
3. Step 3: Cross multiply
   1,799.78x = 2,483.85 × 1,013.81
4. Step 4: Simplify right side
   1,799.78x = 2,518,139.55
5. Step 5: Solve for x
   x = 2,518,139.55/1,799.78
6. Step 6: Final answer
   x = 1,399.14