Finding the Fourth Proportional to 2,558.57, 3,830.36 and 1,944.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,558.57 : 3,830.36 = 1,944.72 : x
2. Step 2: Convert to fraction form
   2,558.57/3,830.36 = 1,944.72/x
3. Step 3: Cross multiply
   2,558.57x = 3,830.36 × 1,944.72
4. Step 4: Simplify right side
   2,558.57x = 7,448,967.98
5. Step 5: Solve for x
   x = 7,448,967.98/2,558.57
6. Step 6: Final answer
   x = 2,911.39