Finding the Fourth Proportional to 1,300.32, 1,793.76 and 776.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,300.32 : 1,793.76 = 776.16 : x
2. Step 2: Convert to fraction form
   1,300.32/1,793.76 = 776.16/x
3. Step 3: Cross multiply
   1,300.32x = 1,793.76 × 776.16
4. Step 4: Simplify right side
   1,300.32x = 1,392,244.76
5. Step 5: Solve for x
   x = 1,392,244.76/1,300.32
6. Step 6: Final answer
   x = 1,070.69