Finding the Fourth Proportional to 1,403.68, 1,934.16 and 1,193.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,403.68 : 1,934.16 = 1,193.12 : x
2. Step 2: Convert to fraction form
   1,403.68/1,934.16 = 1,193.12/x
3. Step 3: Cross multiply
   1,403.68x = 1,934.16 × 1,193.12
4. Step 4: Simplify right side
   1,403.68x = 2,307,684.98
5. Step 5: Solve for x
   x = 2,307,684.98/1,403.68
6. Step 6: Final answer
   x = 1,644.02