Finding the Fourth Proportional to 3,570.42, 5,354.91 and 1,379.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,570.42 : 5,354.91 = 1,379.46 : x
2. Step 2: Convert to fraction form
   3,570.42/5,354.91 = 1,379.46/x
3. Step 3: Cross multiply
   3,570.42x = 5,354.91 × 1,379.46
4. Step 4: Simplify right side
   3,570.42x = 7,386,884.15
5. Step 5: Solve for x
   x = 7,386,884.15/3,570.42
6. Step 6: Final answer
   x = 2,068.91