Finding the Fourth Proportional to 2,538.47, 3,807.36 and 1,077.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.47 : 3,807.36 = 1,077.98 : x
2. Step 2: Convert to fraction form
   2,538.47/3,807.36 = 1,077.98/x
3. Step 3: Cross multiply
   2,538.47x = 3,807.36 × 1,077.98
4. Step 4: Simplify right side
   2,538.47x = 4,104,238.90
5. Step 5: Solve for x
   x = 4,104,238.90/2,538.47
6. Step 6: Final answer
   x = 1,616.81