Finding the Fourth Proportional to 1,790.72, 2,471.10 and 983.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,790.72 : 2,471.10 = 983.19 : x
2. Step 2: Convert to fraction form
   1,790.72/2,471.10 = 983.19/x
3. Step 3: Cross multiply
   1,790.72x = 2,471.10 × 983.19
4. Step 4: Simplify right side
   1,790.72x = 2,429,560.81
5. Step 5: Solve for x
   x = 2,429,560.81/1,790.72
6. Step 6: Final answer
   x = 1,356.75