Finding the Fourth Proportional to 1,783.55, 2,675.86 and 1,264.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,783.55 : 2,675.86 = 1,264.55 : x
2. Step 2: Convert to fraction form
   1,783.55/2,675.86 = 1,264.55/x
3. Step 3: Cross multiply
   1,783.55x = 2,675.86 × 1,264.55
4. Step 4: Simplify right side
   1,783.55x = 3,383,758.76
5. Step 5: Solve for x
   x = 3,383,758.76/1,783.55
6. Step 6: Final answer
   x = 1,897.20