Finding the Fourth Proportional to 1,675.52, 2,311.72 and 1,012.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,675.52 : 2,311.72 = 1,012.60 : x
2. Step 2: Convert to fraction form
   1,675.52/2,311.72 = 1,012.60/x
3. Step 3: Cross multiply
   1,675.52x = 2,311.72 × 1,012.60
4. Step 4: Simplify right side
   1,675.52x = 2,340,847.67
5. Step 5: Solve for x
   x = 2,340,847.67/1,675.52
6. Step 6: Final answer
   x = 1,397.09