Finding the Fourth Proportional to 1,377.05, 2,062.46 and 1,066.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.05 : 2,062.46 = 1,066.42 : x
2. Step 2: Convert to fraction form
   1,377.05/2,062.46 = 1,066.42/x
3. Step 3: Cross multiply
   1,377.05x = 2,062.46 × 1,066.42
4. Step 4: Simplify right side
   1,377.05x = 2,199,453.84
5. Step 5: Solve for x
   x = 2,199,453.84/1,377.05
6. Step 6: Final answer
   x = 1,597.23