Finding the Fourth Proportional to 1,298.79, 1,783.27 and 1,264.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,298.79 : 1,783.27 = 1,264.96 : x
2. Step 2: Convert to fraction form
   1,298.79/1,783.27 = 1,264.96/x
3. Step 3: Cross multiply
   1,298.79x = 1,783.27 × 1,264.96
4. Step 4: Simplify right side
   1,298.79x = 2,255,758.89
5. Step 5: Solve for x
   x = 2,255,758.89/1,298.79
6. Step 6: Final answer
   x = 1,736.82