Finding the Fourth Proportional to 1,451.89, 2,176.53 and 711.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.89 : 2,176.53 = 711.10 : x
2. Step 2: Convert to fraction form
   1,451.89/2,176.53 = 711.10/x
3. Step 3: Cross multiply
   1,451.89x = 2,176.53 × 711.10
4. Step 4: Simplify right side
   1,451.89x = 1,547,730.48
5. Step 5: Solve for x
   x = 1,547,730.48/1,451.89
6. Step 6: Final answer
   x = 1,066.01