Finding the Fourth Proportional to 3,958.88, 5,925.42 and 2,918.45

Step by Step Solution

1. Step 1: Write the proportion equation
   3,958.88 : 5,925.42 = 2,918.45 : x
2. Step 2: Convert to fraction form
   3,958.88/5,925.42 = 2,918.45/x
3. Step 3: Cross multiply
   3,958.88x = 5,925.42 × 2,918.45
4. Step 4: Simplify right side
   3,958.88x = 17,293,042.00
5. Step 5: Solve for x
   x = 17,293,042.00/3,958.88
6. Step 6: Final answer
   x = 4,368.17