Finding the Fourth Proportional to 1,770.72, 2,443.65 and 984.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,770.72 : 2,443.65 = 984.75 : x
2. Step 2: Convert to fraction form
   1,770.72/2,443.65 = 984.75/x
3. Step 3: Cross multiply
   1,770.72x = 2,443.65 × 984.75
4. Step 4: Simplify right side
   1,770.72x = 2,406,384.34
5. Step 5: Solve for x
   x = 2,406,384.34/1,770.72
6. Step 6: Final answer
   x = 1,358.99