Finding the Fourth Proportional to 1,680.09, 2,317.05 and 1,090.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680.09 : 2,317.05 = 1,090.82 : x
2. Step 2: Convert to fraction form
   1,680.09/2,317.05 = 1,090.82/x
3. Step 3: Cross multiply
   1,680.09x = 2,317.05 × 1,090.82
4. Step 4: Simplify right side
   1,680.09x = 2,527,472.90
5. Step 5: Solve for x
   x = 2,527,472.90/1,680.09
6. Step 6: Final answer
   x = 1,504.37