Finding the Fourth Proportional to 957.86, 1,433.28 and 784.10

Step by Step Solution

1. Step 1: Write the proportion equation
   957.86 : 1,433.28 = 784.10 : x
2. Step 2: Convert to fraction form
   957.86/1,433.28 = 784.10/x
3. Step 3: Cross multiply
   957.86x = 1,433.28 × 784.10
4. Step 4: Simplify right side
   957.86x = 1,123,834.85
5. Step 5: Solve for x
   x = 1,123,834.85/957.86
6. Step 6: Final answer
   x = 1,173.28