Finding the Fourth Proportional to 1,045.82, 1,565.51 and 784.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.82 : 1,565.51 = 784.28 : x
2. Step 2: Convert to fraction form
   1,045.82/1,565.51 = 784.28/x
3. Step 3: Cross multiply
   1,045.82x = 1,565.51 × 784.28
4. Step 4: Simplify right side
   1,045.82x = 1,227,786.43
5. Step 5: Solve for x
   x = 1,227,786.43/1,045.82
6. Step 6: Final answer
   x = 1,174.00