Finding the Fourth Proportional to 2,153.42, 2,969.70 and 1,712.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,153.42 : 2,969.70 = 1,712.78 : x
2. Step 2: Convert to fraction form
   2,153.42/2,969.70 = 1,712.78/x
3. Step 3: Cross multiply
   2,153.42x = 2,969.70 × 1,712.78
4. Step 4: Simplify right side
   2,153.42x = 5,086,442.77
5. Step 5: Solve for x
   x = 5,086,442.77/2,153.42
6. Step 6: Final answer
   x = 2,362.03