Finding the Fourth Proportional to 1,017.39, 1,522.08 and 784.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.39 : 1,522.08 = 784.52 : x
2. Step 2: Convert to fraction form
   1,017.39/1,522.08 = 784.52/x
3. Step 3: Cross multiply
   1,017.39x = 1,522.08 × 784.52
4. Step 4: Simplify right side
   1,017.39x = 1,194,094.59
5. Step 5: Solve for x
   x = 1,194,094.59/1,017.39
6. Step 6: Final answer
   x = 1,173.68