Finding the Fourth Proportional to 2,355.31, 3,533.04 and 623.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,355.31 : 3,533.04 = 623.94 : x
2. Step 2: Convert to fraction form
   2,355.31/3,533.04 = 623.94/x
3. Step 3: Cross multiply
   2,355.31x = 3,533.04 × 623.94
4. Step 4: Simplify right side
   2,355.31x = 2,204,404.98
5. Step 5: Solve for x
   x = 2,204,404.98/2,355.31
6. Step 6: Final answer
   x = 935.93