Finding the Fourth Proportional to 3,268.17, 4,900.57 and 1,187.62

Step by Step Solution

1. Step 1: Write the proportion equation
   3,268.17 : 4,900.57 = 1,187.62 : x
2. Step 2: Convert to fraction form
   3,268.17/4,900.57 = 1,187.62/x
3. Step 3: Cross multiply
   3,268.17x = 4,900.57 × 1,187.62
4. Step 4: Simplify right side
   3,268.17x = 5,819,999.72
5. Step 5: Solve for x
   x = 5,819,999.72/3,268.17
6. Step 6: Final answer
   x = 1,780.81