Finding the Fourth Proportional to 1,733.29, 2,392.05 and 987.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,733.29 : 2,392.05 = 987.31 : x
2. Step 2: Convert to fraction form
   1,733.29/2,392.05 = 987.31/x
3. Step 3: Cross multiply
   1,733.29x = 2,392.05 × 987.31
4. Step 4: Simplify right side
   1,733.29x = 2,361,694.89
5. Step 5: Solve for x
   x = 2,361,694.89/1,733.29
6. Step 6: Final answer
   x = 1,362.55