Finding the Fourth Proportional to 4,123.45, 5,690.59 and 2,355.63

Step by Step Solution

1. Step 1: Write the proportion equation
   4,123.45 : 5,690.59 = 2,355.63 : x
2. Step 2: Convert to fraction form
   4,123.45/5,690.59 = 2,355.63/x
3. Step 3: Cross multiply
   4,123.45x = 5,690.59 × 2,355.63
4. Step 4: Simplify right side
   4,123.45x = 13,404,924.52
5. Step 5: Solve for x
   x = 13,404,924.52/4,123.45
6. Step 6: Final answer
   x = 3,250.90