Finding the Fourth Proportional to 1,402.95, 1,936.06 and 813.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.95 : 1,936.06 = 813.83 : x
2. Step 2: Convert to fraction form
   1,402.95/1,936.06 = 813.83/x
3. Step 3: Cross multiply
   1,402.95x = 1,936.06 × 813.83
4. Step 4: Simplify right side
   1,402.95x = 1,575,615.05
5. Step 5: Solve for x
   x = 1,575,615.05/1,402.95
6. Step 6: Final answer
   x = 1,123.07