Finding the Fourth Proportional to 1,764.30, 2,648.70 and 1,069.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.30 : 2,648.70 = 1,069.02 : x
2. Step 2: Convert to fraction form
   1,764.30/2,648.70 = 1,069.02/x
3. Step 3: Cross multiply
   1,764.30x = 2,648.70 × 1,069.02
4. Step 4: Simplify right side
   1,764.30x = 2,831,513.27
5. Step 5: Solve for x
   x = 2,831,513.27/1,764.30
6. Step 6: Final answer
   x = 1,604.89