Finding the Fourth Proportional to 2,090.58, 3,136.91 and 1,478.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.58 : 3,136.91 = 1,478.22 : x
2. Step 2: Convert to fraction form
   2,090.58/3,136.91 = 1,478.22/x
3. Step 3: Cross multiply
   2,090.58x = 3,136.91 × 1,478.22
4. Step 4: Simplify right side
   2,090.58x = 4,637,035.71
5. Step 5: Solve for x
   x = 4,637,035.71/2,090.58
6. Step 6: Final answer
   x = 2,218.06