Finding the Fourth Proportional to 1,535.03, 2,118.74 and 946.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,535.03 : 2,118.74 = 946.05 : x
2. Step 2: Convert to fraction form
   1,535.03/2,118.74 = 946.05/x
3. Step 3: Cross multiply
   1,535.03x = 2,118.74 × 946.05
4. Step 4: Simplify right side
   1,535.03x = 2,004,433.98
5. Step 5: Solve for x
   x = 2,004,433.98/1,535.03
6. Step 6: Final answer
   x = 1,305.79