Finding the Fourth Proportional to 1,779.71, 2,456.01 and 983.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,779.71 : 2,456.01 = 983.07 : x
2. Step 2: Convert to fraction form
   1,779.71/2,456.01 = 983.07/x
3. Step 3: Cross multiply
   1,779.71x = 2,456.01 × 983.07
4. Step 4: Simplify right side
   1,779.71x = 2,414,429.75
5. Step 5: Solve for x
   x = 2,414,429.75/1,779.71
6. Step 6: Final answer
   x = 1,356.65