Finding the Fourth Proportional to 3,993.17, 5,980.64 and 3,526.00

Step by Step Solution

1. Step 1: Write the proportion equation
   3,993.17 : 5,980.64 = 3,526.00 : x
2. Step 2: Convert to fraction form
   3,993.17/5,980.64 = 3,526.00/x
3. Step 3: Cross multiply
   3,993.17x = 5,980.64 × 3,526.00
4. Step 4: Simplify right side
   3,993.17x = 21,087,704.06
5. Step 5: Solve for x
   x = 21,087,704.06/3,993.17
6. Step 6: Final answer
   x = 5,280.95