Finding the Fourth Proportional to 1,455.42, 2,009.43 and 1,061.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,455.42 : 2,009.43 = 1,061.76 : x
2. Step 2: Convert to fraction form
   1,455.42/2,009.43 = 1,061.76/x
3. Step 3: Cross multiply
   1,455.42x = 2,009.43 × 1,061.76
4. Step 4: Simplify right side
   1,455.42x = 2,133,532.40
5. Step 5: Solve for x
   x = 2,133,532.40/1,455.42
6. Step 6: Final answer
   x = 1,465.92