Finding the Fourth Proportional to 1,783.94, 2,461.89 and 998.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.94 : 2,461.89 = 998.12 : x
2. Step 2: Convert to fraction form
   1,783.94/2,461.89 = 998.12/x
3. Step 3: Cross multiply
   1,783.94x = 2,461.89 × 998.12
4. Step 4: Simplify right side
   1,783.94x = 2,457,261.65
5. Step 5: Solve for x
   x = 2,457,261.65/1,783.94
6. Step 6: Final answer
   x = 1,377.44