Finding the Fourth Proportional to 2,660.00, 3,990.28 and 1,017.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,660.00 : 3,990.28 = 1,017.93 : x
2. Step 2: Convert to fraction form
   2,660.00/3,990.28 = 1,017.93/x
3. Step 3: Cross multiply
   2,660.00x = 3,990.28 × 1,017.93
4. Step 4: Simplify right side
   2,660.00x = 4,061,832.57
5. Step 5: Solve for x
   x = 4,061,832.57/2,660.00
6. Step 6: Final answer
   x = 1,527.00