Finding the Fourth Proportional to 1,664.56, 2,496.43 and 1,047.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.56 : 2,496.43 = 1,047.34 : x
2. Step 2: Convert to fraction form
   1,664.56/2,496.43 = 1,047.34/x
3. Step 3: Cross multiply
   1,664.56x = 2,496.43 × 1,047.34
4. Step 4: Simplify right side
   1,664.56x = 2,614,611.00
5. Step 5: Solve for x
   x = 2,614,611.00/1,664.56
6. Step 6: Final answer
   x = 1,570.75