Finding the Fourth Proportional to 1,382.55, 1,901.38 and 1,099.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,382.55 : 1,901.38 = 1,099.46 : x
2. Step 2: Convert to fraction form
   1,382.55/1,901.38 = 1,099.46/x
3. Step 3: Cross multiply
   1,382.55x = 1,901.38 × 1,099.46
4. Step 4: Simplify right side
   1,382.55x = 2,090,481.75
5. Step 5: Solve for x
   x = 2,090,481.75/1,382.55
6. Step 6: Final answer
   x = 1,512.05