Finding the Fourth Proportional to 2,900.07, 3,997.68 and 1,778.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900.07 : 3,997.68 = 1,778.94 : x
2. Step 2: Convert to fraction form
   2,900.07/3,997.68 = 1,778.94/x
3. Step 3: Cross multiply
   2,900.07x = 3,997.68 × 1,778.94
4. Step 4: Simplify right side
   2,900.07x = 7,111,632.86
5. Step 5: Solve for x
   x = 7,111,632.86/2,900.07
6. Step 6: Final answer
   x = 2,452.23