Finding the Fourth Proportional to 3,423.78, 5,130.72 and 1,862.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,423.78 : 5,130.72 = 1,862.46 : x
2. Step 2: Convert to fraction form
   3,423.78/5,130.72 = 1,862.46/x
3. Step 3: Cross multiply
   3,423.78x = 5,130.72 × 1,862.46
4. Step 4: Simplify right side
   3,423.78x = 9,555,760.77
5. Step 5: Solve for x
   x = 9,555,760.77/3,423.78
6. Step 6: Final answer
   x = 2,791.00