Finding the Fourth Proportional to 2,010.58, 2,775.57 and 1,264.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,010.58 : 2,775.57 = 1,264.90 : x
2. Step 2: Convert to fraction form
   2,010.58/2,775.57 = 1,264.90/x
3. Step 3: Cross multiply
   2,010.58x = 2,775.57 × 1,264.90
4. Step 4: Simplify right side
   2,010.58x = 3,510,818.49
5. Step 5: Solve for x
   x = 3,510,818.49/2,010.58
6. Step 6: Final answer
   x = 1,746.17