Finding the Fourth Proportional to 1,880.42, 2,820.24 and 710.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,880.42 : 2,820.24 = 710.42 : x
2. Step 2: Convert to fraction form
   1,880.42/2,820.24 = 710.42/x
3. Step 3: Cross multiply
   1,880.42x = 2,820.24 × 710.42
4. Step 4: Simplify right side
   1,880.42x = 2,003,540.80
5. Step 5: Solve for x
   x = 2,003,540.80/1,880.42
6. Step 6: Final answer
   x = 1,065.48