Finding the Fourth Proportional to 1,382.32, 1,907.27 and 784.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.32 : 1,907.27 = 784.68 : x
2. Step 2: Convert to fraction form
   1,382.32/1,907.27 = 784.68/x
3. Step 3: Cross multiply
   1,382.32x = 1,907.27 × 784.68
4. Step 4: Simplify right side
   1,382.32x = 1,496,588.49
5. Step 5: Solve for x
   x = 1,496,588.49/1,382.32
6. Step 6: Final answer
   x = 1,082.66