Finding the Fourth Proportional to 1,011.05, 1,395.27 and 562.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011.05 : 1,395.27 = 562.96 : x
2. Step 2: Convert to fraction form
   1,011.05/1,395.27 = 562.96/x
3. Step 3: Cross multiply
   1,011.05x = 1,395.27 × 562.96
4. Step 4: Simplify right side
   1,011.05x = 785,477.71
5. Step 5: Solve for x
   x = 785,477.71/1,011.05
6. Step 6: Final answer
   x = 776.89