Finding the Fourth Proportional to 1,004.24, 1,503.62 and 784.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,004.24 : 1,503.62 = 784.72 : x
2. Step 2: Convert to fraction form
   1,004.24/1,503.62 = 784.72/x
3. Step 3: Cross multiply
   1,004.24x = 1,503.62 × 784.72
4. Step 4: Simplify right side
   1,004.24x = 1,179,920.69
5. Step 5: Solve for x
   x = 1,179,920.69/1,004.24
6. Step 6: Final answer
   x = 1,174.94