Finding the Fourth Proportional to 2,379.61, 3,570.63 and 1,557.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.61 : 3,570.63 = 1,557.73 : x
2. Step 2: Convert to fraction form
   2,379.61/3,570.63 = 1,557.73/x
3. Step 3: Cross multiply
   2,379.61x = 3,570.63 × 1,557.73
4. Step 4: Simplify right side
   2,379.61x = 5,562,077.47
5. Step 5: Solve for x
   x = 5,562,077.47/2,379.61
6. Step 6: Final answer
   x = 2,337.39