Finding the Fourth Proportional to 3,953.88, 5,926.56 and 2,103.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953.88 : 5,926.56 = 2,103.12 : x
2. Step 2: Convert to fraction form
   3,953.88/5,926.56 = 2,103.12/x
3. Step 3: Cross multiply
   3,953.88x = 5,926.56 × 2,103.12
4. Step 4: Simplify right side
   3,953.88x = 12,464,266.87
5. Step 5: Solve for x
   x = 12,464,266.87/3,953.88
6. Step 6: Final answer
   x = 3,152.41