Finding the Fourth Proportional to 1,363.31, 2,039.32 and 929.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,363.31 : 2,039.32 = 929.51 : x
2. Step 2: Convert to fraction form
   1,363.31/2,039.32 = 929.51/x
3. Step 3: Cross multiply
   1,363.31x = 2,039.32 × 929.51
4. Step 4: Simplify right side
   1,363.31x = 1,895,568.33
5. Step 5: Solve for x
   x = 1,895,568.33/1,363.31
6. Step 6: Final answer
   x = 1,390.42