Finding the Fourth Proportional to 1,839.52, 2,538.84 and 1,778.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,839.52 : 2,538.84 = 1,778.77 : x
2. Step 2: Convert to fraction form
   1,839.52/2,538.84 = 1,778.77/x
3. Step 3: Cross multiply
   1,839.52x = 2,538.84 × 1,778.77
4. Step 4: Simplify right side
   1,839.52x = 4,516,012.43
5. Step 5: Solve for x
   x = 4,516,012.43/1,839.52
6. Step 6: Final answer
   x = 2,455.00