Finding the Fourth Proportional to 3,570.86, 5,356.43 and 973.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,570.86 : 5,356.43 = 973.79 : x
2. Step 2: Convert to fraction form
   3,570.86/5,356.43 = 973.79/x
3. Step 3: Cross multiply
   3,570.86x = 5,356.43 × 973.79
4. Step 4: Simplify right side
   3,570.86x = 5,216,006.32
5. Step 5: Solve for x
   x = 5,216,006.32/3,570.86
6. Step 6: Final answer
   x = 1,460.72