Finding the Fourth Proportional to 2,137.43, 3,206.15 and 904.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,137.43 : 3,206.15 = 904.52 : x
2. Step 2: Convert to fraction form
   2,137.43/3,206.15 = 904.52/x
3. Step 3: Cross multiply
   2,137.43x = 3,206.15 × 904.52
4. Step 4: Simplify right side
   2,137.43x = 2,900,006.24
5. Step 5: Solve for x
   x = 2,900,006.24/2,137.43
6. Step 6: Final answer
   x = 1,356.78