Finding the Fourth Proportional to 1,551.32, 2,140.81 and 852.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,551.32 : 2,140.81 = 852.69 : x
2. Step 2: Convert to fraction form
   1,551.32/2,140.81 = 852.69/x
3. Step 3: Cross multiply
   1,551.32x = 2,140.81 × 852.69
4. Step 4: Simplify right side
   1,551.32x = 1,825,447.28
5. Step 5: Solve for x
   x = 1,825,447.28/1,551.32
6. Step 6: Final answer
   x = 1,176.71