Finding the Fourth Proportional to 2,817.86, 3,889.62 and 1,925.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,817.86 : 3,889.62 = 1,925.98 : x
2. Step 2: Convert to fraction form
   2,817.86/3,889.62 = 1,925.98/x
3. Step 3: Cross multiply
   2,817.86x = 3,889.62 × 1,925.98
4. Step 4: Simplify right side
   2,817.86x = 7,491,320.60
5. Step 5: Solve for x
   x = 7,491,320.60/2,817.86
6. Step 6: Final answer
   x = 2,658.52