Finding the Fourth Proportional to 2,123.30, 3,184.57 and 953.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.30 : 3,184.57 = 953.35 : x
2. Step 2: Convert to fraction form
   2,123.30/3,184.57 = 953.35/x
3. Step 3: Cross multiply
   2,123.30x = 3,184.57 × 953.35
4. Step 4: Simplify right side
   2,123.30x = 3,036,009.81
5. Step 5: Solve for x
   x = 3,036,009.81/2,123.30
6. Step 6: Final answer
   x = 1,429.85