Finding the Fourth Proportional to 2,472.95, 3,412.71 and 1,353.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.95 : 3,412.71 = 1,353.89 : x
2. Step 2: Convert to fraction form
   2,472.95/3,412.71 = 1,353.89/x
3. Step 3: Cross multiply
   2,472.95x = 3,412.71 × 1,353.89
4. Step 4: Simplify right side
   2,472.95x = 4,620,442.47
5. Step 5: Solve for x
   x = 4,620,442.47/2,472.95
6. Step 6: Final answer
   x = 1,868.39