Finding the Fourth Proportional to 1,618.72, 2,425.89 and 740.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.72 : 2,425.89 = 740.14 : x
2. Step 2: Convert to fraction form
   1,618.72/2,425.89 = 740.14/x
3. Step 3: Cross multiply
   1,618.72x = 2,425.89 × 740.14
4. Step 4: Simplify right side
   1,618.72x = 1,795,498.22
5. Step 5: Solve for x
   x = 1,795,498.22/1,618.72
6. Step 6: Final answer
   x = 1,109.21