Finding the Fourth Proportional to 2,526.16, 3,786.44 and 1,907.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,526.16 : 3,786.44 = 1,907.86 : x
2. Step 2: Convert to fraction form
   2,526.16/3,786.44 = 1,907.86/x
3. Step 3: Cross multiply
   2,526.16x = 3,786.44 × 1,907.86
4. Step 4: Simplify right side
   2,526.16x = 7,223,997.42
5. Step 5: Solve for x
   x = 7,223,997.42/2,526.16
6. Step 6: Final answer
   x = 2,859.68