Finding the Fourth Proportional to 2,428.25, 3,641.94 and 1,111.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,428.25 : 3,641.94 = 1,111.59 : x
2. Step 2: Convert to fraction form
   2,428.25/3,641.94 = 1,111.59/x
3. Step 3: Cross multiply
   2,428.25x = 3,641.94 × 1,111.59
4. Step 4: Simplify right side
   2,428.25x = 4,048,344.08
5. Step 5: Solve for x
   x = 4,048,344.08/2,428.25
6. Step 6: Final answer
   x = 1,667.19