Finding the Fourth Proportional to 1,423.10, 1,964.05 and 833.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,423.10 : 1,964.05 = 833.63 : x
2. Step 2: Convert to fraction form
   1,423.10/1,964.05 = 833.63/x
3. Step 3: Cross multiply
   1,423.10x = 1,964.05 × 833.63
4. Step 4: Simplify right side
   1,423.10x = 1,637,279.10
5. Step 5: Solve for x
   x = 1,637,279.10/1,423.10
6. Step 6: Final answer
   x = 1,150.50