Finding the Fourth Proportional to 3,875.78, 5,348.30 and 2,303.57

Step by Step Solution

1. Step 1: Write the proportion equation
   3,875.78 : 5,348.30 = 2,303.57 : x
2. Step 2: Convert to fraction form
   3,875.78/5,348.30 = 2,303.57/x
3. Step 3: Cross multiply
   3,875.78x = 5,348.30 × 2,303.57
4. Step 4: Simplify right side
   3,875.78x = 12,320,145.17
5. Step 5: Solve for x
   x = 12,320,145.17/3,875.78
6. Step 6: Final answer
   x = 3,178.76