Finding the Fourth Proportional to 2,620.00, 3,930.01 and 771.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,620.00 : 3,930.01 = 771.14 : x
2. Step 2: Convert to fraction form
   2,620.00/3,930.01 = 771.14/x
3. Step 3: Cross multiply
   2,620.00x = 3,930.01 × 771.14
4. Step 4: Simplify right side
   2,620.00x = 3,030,566.33
5. Step 5: Solve for x
   x = 3,030,566.33/2,620.00
6. Step 6: Final answer
   x = 1,156.71