Finding the Fourth Proportional to 1,492.55, 2,058.61 and 961.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.55 : 2,058.61 = 961.09 : x
2. Step 2: Convert to fraction form
   1,492.55/2,058.61 = 961.09/x
3. Step 3: Cross multiply
   1,492.55x = 2,058.61 × 961.09
4. Step 4: Simplify right side
   1,492.55x = 1,978,509.48
5. Step 5: Solve for x
   x = 1,978,509.48/1,492.55
6. Step 6: Final answer
   x = 1,325.59