Finding the Fourth Proportional to 1,040.00, 1,558.37 and 654.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.00 : 1,558.37 = 654.44 : x
2. Step 2: Convert to fraction form
   1,040.00/1,558.37 = 654.44/x
3. Step 3: Cross multiply
   1,040.00x = 1,558.37 × 654.44
4. Step 4: Simplify right side
   1,040.00x = 1,019,848.60
5. Step 5: Solve for x
   x = 1,019,848.60/1,040.00
6. Step 6: Final answer
   x = 980.63