Finding the Fourth Proportional to 1,034.10, 1,427.05 and 561.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.10 : 1,427.05 = 561.99 : x
2. Step 2: Convert to fraction form
   1,034.10/1,427.05 = 561.99/x
3. Step 3: Cross multiply
   1,034.10x = 1,427.05 × 561.99
4. Step 4: Simplify right side
   1,034.10x = 801,987.83
5. Step 5: Solve for x
   x = 801,987.83/1,034.10
6. Step 6: Final answer
   x = 775.54