Finding the Fourth Proportional to 2,090.52, 2,886.30 and 1,263

Step by Step Solution

1. Step 1: Write the proportion equation
   2,090.52 : 2,886.30 = 1,263 : x
2. Step 2: Convert to fraction form
   2,090.52/2,886.30 = 1,263/x
3. Step 3: Cross multiply
   2,090.52x = 2,886.30 × 1,263
4. Step 4: Simplify right side
   2,090.52x = 3,645,396.90
5. Step 5: Solve for x
   x = 3,645,396.90/2,090.52
6. Step 6: Final answer
   x = 1,743.78