Finding the Fourth Proportional to 1,783.57, 2,461.23 and 997.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.57 : 2,461.23 = 997.47 : x
2. Step 2: Convert to fraction form
   1,783.57/2,461.23 = 997.47/x
3. Step 3: Cross multiply
   1,783.57x = 2,461.23 × 997.47
4. Step 4: Simplify right side
   1,783.57x = 2,455,003.09
5. Step 5: Solve for x
   x = 2,455,003.09/1,783.57
6. Step 6: Final answer
   x = 1,376.45