Finding the Fourth Proportional to 2,431.77, 3,355.77 and 1,369.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431.77 : 3,355.77 = 1,369.59 : x
2. Step 2: Convert to fraction form
   2,431.77/3,355.77 = 1,369.59/x
3. Step 3: Cross multiply
   2,431.77x = 3,355.77 × 1,369.59
4. Step 4: Simplify right side
   2,431.77x = 4,596,029.03
5. Step 5: Solve for x
   x = 4,596,029.03/2,431.77
6. Step 6: Final answer
   x = 1,889.99