Finding the Fourth Proportional to 1,061.10, 1,463.22 and 997.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,061.10 : 1,463.22 = 997.56 : x
2. Step 2: Convert to fraction form
   1,061.10/1,463.22 = 997.56/x
3. Step 3: Cross multiply
   1,061.10x = 1,463.22 × 997.56
4. Step 4: Simplify right side
   1,061.10x = 1,459,649.74
5. Step 5: Solve for x
   x = 1,459,649.74/1,061.10
6. Step 6: Final answer
   x = 1,375.60