Finding the Fourth Proportional to 1,940.56, 2,909.76 and 784.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,940.56 : 2,909.76 = 784.96 : x
2. Step 2: Convert to fraction form
   1,940.56/2,909.76 = 784.96/x
3. Step 3: Cross multiply
   1,940.56x = 2,909.76 × 784.96
4. Step 4: Simplify right side
   1,940.56x = 2,284,045.21
5. Step 5: Solve for x
   x = 2,284,045.21/1,940.56
6. Step 6: Final answer
   x = 1,177.00