Finding the Fourth Proportional to 2,058.35, 3,086.55 and 742.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.35 : 3,086.55 = 742.50 : x
2. Step 2: Convert to fraction form
   2,058.35/3,086.55 = 742.50/x
3. Step 3: Cross multiply
   2,058.35x = 3,086.55 × 742.50
4. Step 4: Simplify right side
   2,058.35x = 2,291,763.38
5. Step 5: Solve for x
   x = 2,291,763.38/2,058.35
6. Step 6: Final answer
   x = 1,113.40