Finding the Fourth Proportional to 1,783.83, 2,461.32 and 997.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.83 : 2,461.32 = 997.72 : x
2. Step 2: Convert to fraction form
   1,783.83/2,461.32 = 997.72/x
3. Step 3: Cross multiply
   1,783.83x = 2,461.32 × 997.72
4. Step 4: Simplify right side
   1,783.83x = 2,455,708.19
5. Step 5: Solve for x
   x = 2,455,708.19/1,783.83
6. Step 6: Final answer
   x = 1,376.65