Finding the Fourth Proportional to 1,783.98, 2,461.98 and 998.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.98 : 2,461.98 = 998.10 : x
2. Step 2: Convert to fraction form
   1,783.98/2,461.98 = 998.10/x
3. Step 3: Cross multiply
   1,783.98x = 2,461.98 × 998.10
4. Step 4: Simplify right side
   1,783.98x = 2,457,302.24
5. Step 5: Solve for x
   x = 2,457,302.24/1,783.98
6. Step 6: Final answer
   x = 1,377.43