Finding the Fourth Proportional to 2,353.43, 3,528.05 and 893.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,353.43 : 3,528.05 = 893.61 : x
2. Step 2: Convert to fraction form
   2,353.43/3,528.05 = 893.61/x
3. Step 3: Cross multiply
   2,353.43x = 3,528.05 × 893.61
4. Step 4: Simplify right side
   2,353.43x = 3,152,681.41
5. Step 5: Solve for x
   x = 3,152,681.41/2,353.43
6. Step 6: Final answer
   x = 1,339.61