Finding the Fourth Proportional to 2,136.84, 3,205.82 and 904.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,136.84 : 3,205.82 = 904.30 : x
2. Step 2: Convert to fraction form
   2,136.84/3,205.82 = 904.30/x
3. Step 3: Cross multiply
   2,136.84x = 3,205.82 × 904.30
4. Step 4: Simplify right side
   2,136.84x = 2,899,007.00
5. Step 5: Solve for x
   x = 2,899,007.00/2,136.84
6. Step 6: Final answer
   x = 1,356.68