Finding the Fourth Proportional to 1,527.12, 2,107.71 and 1,433.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,527.12 : 2,107.71 = 1,433.34 : x
2. Step 2: Convert to fraction form
   1,527.12/2,107.71 = 1,433.34/x
3. Step 3: Cross multiply
   1,527.12x = 2,107.71 × 1,433.34
4. Step 4: Simplify right side
   1,527.12x = 3,021,065.05
5. Step 5: Solve for x
   x = 3,021,065.05/1,527.12
6. Step 6: Final answer
   x = 1,978.28