Finding the Fourth Proportional to 1,631.05, 2,443.50 and 1,264.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,631.05 : 2,443.50 = 1,264.05 : x
2. Step 2: Convert to fraction form
   1,631.05/2,443.50 = 1,264.05/x
3. Step 3: Cross multiply
   1,631.05x = 2,443.50 × 1,264.05
4. Step 4: Simplify right side
   1,631.05x = 3,088,693.96
5. Step 5: Solve for x
   x = 3,088,693.96/1,631.05
6. Step 6: Final answer
   x = 1,893.68