Finding the Fourth Proportional to 3,569.96, 4,925.76 and 2,153.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,569.96 : 4,925.76 = 2,153.72 : x
2. Step 2: Convert to fraction form
   3,569.96/4,925.76 = 2,153.72/x
3. Step 3: Cross multiply
   3,569.96x = 4,925.76 × 2,153.72
4. Step 4: Simplify right side
   3,569.96x = 10,608,707.83
5. Step 5: Solve for x
   x = 10,608,707.83/3,569.96
6. Step 6: Final answer
   x = 2,971.66