Finding the Fourth Proportional to 2,012.61, 2,776.88 and 1,348.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.61 : 2,776.88 = 1,348.31 : x
2. Step 2: Convert to fraction form
   2,012.61/2,776.88 = 1,348.31/x
3. Step 3: Cross multiply
   2,012.61x = 2,776.88 × 1,348.31
4. Step 4: Simplify right side
   2,012.61x = 3,744,105.39
5. Step 5: Solve for x
   x = 3,744,105.39/2,012.61
6. Step 6: Final answer
   x = 1,860.32