Finding the Fourth Proportional to 3,499.88, 5,250.56 and 2,926.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,499.88 : 5,250.56 = 2,926.76 : x
2. Step 2: Convert to fraction form
   3,499.88/5,250.56 = 2,926.76/x
3. Step 3: Cross multiply
   3,499.88x = 5,250.56 × 2,926.76
4. Step 4: Simplify right side
   3,499.88x = 15,367,128.99
5. Step 5: Solve for x
   x = 15,367,128.99/3,499.88
6. Step 6: Final answer
   x = 4,390.76