Finding the Fourth Proportional to 2,538.95, 3,807.70 and 1,151.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.95 : 3,807.70 = 1,151.55 : x
2. Step 2: Convert to fraction form
   2,538.95/3,807.70 = 1,151.55/x
3. Step 3: Cross multiply
   2,538.95x = 3,807.70 × 1,151.55
4. Step 4: Simplify right side
   2,538.95x = 4,384,754.06
5. Step 5: Solve for x
   x = 4,384,754.06/2,538.95
6. Step 6: Final answer
   x = 1,727.00