Finding the Fourth Proportional to 1,530.92, 2,113.89 and 941.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,530.92 : 2,113.89 = 941.78 : x
2. Step 2: Convert to fraction form
   1,530.92/2,113.89 = 941.78/x
3. Step 3: Cross multiply
   1,530.92x = 2,113.89 × 941.78
4. Step 4: Simplify right side
   1,530.92x = 1,990,819.32
5. Step 5: Solve for x
   x = 1,990,819.32/1,530.92
6. Step 6: Final answer
   x = 1,300.41