Finding the Fourth Proportional to 2,782.60, 3,837.72 and 1,997.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,782.60 : 3,837.72 = 1,997.08 : x
2. Step 2: Convert to fraction form
   2,782.60/3,837.72 = 1,997.08/x
3. Step 3: Cross multiply
   2,782.60x = 3,837.72 × 1,997.08
4. Step 4: Simplify right side
   2,782.60x = 7,664,233.86
5. Step 5: Solve for x
   x = 7,664,233.86/2,782.60
6. Step 6: Final answer
   x = 2,754.34