Finding the Fourth Proportional to 3,758.58, 5,636.48 and 1,292.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,758.58 : 5,636.48 = 1,292.72 : x
2. Step 2: Convert to fraction form
   3,758.58/5,636.48 = 1,292.72/x
3. Step 3: Cross multiply
   3,758.58x = 5,636.48 × 1,292.72
4. Step 4: Simplify right side
   3,758.58x = 7,286,390.43
5. Step 5: Solve for x
   x = 7,286,390.43/3,758.58
6. Step 6: Final answer
   x = 1,938.60