Finding the Fourth Proportional to 1,942.77, 2,915.48 and 710.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.77 : 2,915.48 = 710.56 : x
2. Step 2: Convert to fraction form
   1,942.77/2,915.48 = 710.56/x
3. Step 3: Cross multiply
   1,942.77x = 2,915.48 × 710.56
4. Step 4: Simplify right side
   1,942.77x = 2,071,623.47
5. Step 5: Solve for x
   x = 2,071,623.47/1,942.77
6. Step 6: Final answer
   x = 1,066.32