Finding the Fourth Proportional to 1,404.51, 1,938.17 and 806.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.51 : 1,938.17 = 806.82 : x
2. Step 2: Convert to fraction form
   1,404.51/1,938.17 = 806.82/x
3. Step 3: Cross multiply
   1,404.51x = 1,938.17 × 806.82
4. Step 4: Simplify right side
   1,404.51x = 1,563,750.29
5. Step 5: Solve for x
   x = 1,563,750.29/1,404.51
6. Step 6: Final answer
   x = 1,113.38