Finding the Fourth Proportional to 1,609.20, 2,411.91 and 741.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609.20 : 2,411.91 = 741.69 : x
2. Step 2: Convert to fraction form
   1,609.20/2,411.91 = 741.69/x
3. Step 3: Cross multiply
   1,609.20x = 2,411.91 × 741.69
4. Step 4: Simplify right side
   1,609.20x = 1,788,889.53
5. Step 5: Solve for x
   x = 1,788,889.53/1,609.20
6. Step 6: Final answer
   x = 1,111.66