Finding the Fourth Proportional to 1,881.29, 2,820.25 and 711.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,881.29 : 2,820.25 = 711.07 : x
2. Step 2: Convert to fraction form
   1,881.29/2,820.25 = 711.07/x
3. Step 3: Cross multiply
   1,881.29x = 2,820.25 × 711.07
4. Step 4: Simplify right side
   1,881.29x = 2,005,404.72
5. Step 5: Solve for x
   x = 2,005,404.72/1,881.29
6. Step 6: Final answer
   x = 1,065.97