Finding the Fourth Proportional to 1,409.88, 1,945.72 and 1,038.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.88 : 1,945.72 = 1,038.54 : x
2. Step 2: Convert to fraction form
   1,409.88/1,945.72 = 1,038.54/x
3. Step 3: Cross multiply
   1,409.88x = 1,945.72 × 1,038.54
4. Step 4: Simplify right side
   1,409.88x = 2,020,708.05
5. Step 5: Solve for x
   x = 2,020,708.05/1,409.88
6. Step 6: Final answer
   x = 1,433.25