Finding the Fourth Proportional to 2,423.90, 3,636.12 and 1,037.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,423.90 : 3,636.12 = 1,037.72 : x
2. Step 2: Convert to fraction form
   2,423.90/3,636.12 = 1,037.72/x
3. Step 3: Cross multiply
   2,423.90x = 3,636.12 × 1,037.72
4. Step 4: Simplify right side
   2,423.90x = 3,773,274.45
5. Step 5: Solve for x
   x = 3,773,274.45/2,423.90
6. Step 6: Final answer
   x = 1,556.70