Finding the Fourth Proportional to 2,935.89, 4,404.33 and 987.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,935.89 : 4,404.33 = 987.63 : x
2. Step 2: Convert to fraction form
   2,935.89/4,404.33 = 987.63/x
3. Step 3: Cross multiply
   2,935.89x = 4,404.33 × 987.63
4. Step 4: Simplify right side
   2,935.89x = 4,349,821.48
5. Step 5: Solve for x
   x = 4,349,821.48/2,935.89
6. Step 6: Final answer
   x = 1,481.60