Finding the Fourth Proportional to 2,134.40, 3,196.20 and 1,583.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.40 : 3,196.20 = 1,583.60 : x
2. Step 2: Convert to fraction form
   2,134.40/3,196.20 = 1,583.60/x
3. Step 3: Cross multiply
   2,134.40x = 3,196.20 × 1,583.60
4. Step 4: Simplify right side
   2,134.40x = 5,061,502.32
5. Step 5: Solve for x
   x = 5,061,502.32/2,134.40
6. Step 6: Final answer
   x = 2,371.39