Finding the Fourth Proportional to 2,575.86, 3,554.70 and 1,396.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.86 : 3,554.70 = 1,396.92 : x
2. Step 2: Convert to fraction form
   2,575.86/3,554.70 = 1,396.92/x
3. Step 3: Cross multiply
   2,575.86x = 3,554.70 × 1,396.92
4. Step 4: Simplify right side
   2,575.86x = 4,965,631.52
5. Step 5: Solve for x
   x = 4,965,631.52/2,575.86
6. Step 6: Final answer
   x = 1,927.76