Finding the Fourth Proportional to 1,333.92, 1,998.38 and 784.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,333.92 : 1,998.38 = 784.46 : x
2. Step 2: Convert to fraction form
   1,333.92/1,998.38 = 784.46/x
3. Step 3: Cross multiply
   1,333.92x = 1,998.38 × 784.46
4. Step 4: Simplify right side
   1,333.92x = 1,567,649.17
5. Step 5: Solve for x
   x = 1,567,649.17/1,333.92
6. Step 6: Final answer
   x = 1,175.22