Finding the Fourth Proportional to 5,090.33, 7,636.69 and 1,580.16

Step by Step Solution

1. Step 1: Write the proportion equation
   5,090.33 : 7,636.69 = 1,580.16 : x
2. Step 2: Convert to fraction form
   5,090.33/7,636.69 = 1,580.16/x
3. Step 3: Cross multiply
   5,090.33x = 7,636.69 × 1,580.16
4. Step 4: Simplify right side
   5,090.33x = 12,067,181.95
5. Step 5: Solve for x
   x = 12,067,181.95/5,090.33
6. Step 6: Final answer
   x = 2,370.61