Finding the Fourth Proportional to 740.89, 1,111.18 and 350.72

Step by Step Solution

1. Step 1: Write the proportion equation
   740.89 : 1,111.18 = 350.72 : x
2. Step 2: Convert to fraction form
   740.89/1,111.18 = 350.72/x
3. Step 3: Cross multiply
   740.89x = 1,111.18 × 350.72
4. Step 4: Simplify right side
   740.89x = 389,713.05
5. Step 5: Solve for x
   x = 389,713.05/740.89
6. Step 6: Final answer
   x = 526.01