Finding the Fourth Proportional to 1,746.29, 2,409.25 and 989.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,746.29 : 2,409.25 = 989.98 : x
2. Step 2: Convert to fraction form
   1,746.29/2,409.25 = 989.98/x
3. Step 3: Cross multiply
   1,746.29x = 2,409.25 × 989.98
4. Step 4: Simplify right side
   1,746.29x = 2,385,109.32
5. Step 5: Solve for x
   x = 2,385,109.32/1,746.29
6. Step 6: Final answer
   x = 1,365.82