Finding the Fourth Proportional to 2,431.74, 3,355.88 and 1,369.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431.74 : 3,355.88 = 1,369.52 : x
2. Step 2: Convert to fraction form
   2,431.74/3,355.88 = 1,369.52/x
3. Step 3: Cross multiply
   2,431.74x = 3,355.88 × 1,369.52
4. Step 4: Simplify right side
   2,431.74x = 4,595,954.02
5. Step 5: Solve for x
   x = 4,595,954.02/2,431.74
6. Step 6: Final answer
   x = 1,889.99