Finding the Fourth Proportional to 1,790.78, 2,471.18 and 1,004.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,790.78 : 2,471.18 = 1,004.81 : x
2. Step 2: Convert to fraction form
   1,790.78/2,471.18 = 1,004.81/x
3. Step 3: Cross multiply
   1,790.78x = 2,471.18 × 1,004.81
4. Step 4: Simplify right side
   1,790.78x = 2,483,049.00
5. Step 5: Solve for x
   x = 2,483,049.00/1,790.78
6. Step 6: Final answer
   x = 1,386.58