Finding the Fourth Proportional to 2,985.28, 4,479.86 and 1,136.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,985.28 : 4,479.86 = 1,136.41 : x
2. Step 2: Convert to fraction form
   2,985.28/4,479.86 = 1,136.41/x
3. Step 3: Cross multiply
   2,985.28x = 4,479.86 × 1,136.41
4. Step 4: Simplify right side
   2,985.28x = 5,090,957.70
5. Step 5: Solve for x
   x = 5,090,957.70/2,985.28
6. Step 6: Final answer
   x = 1,705.35