Finding the Fourth Proportional to 2,070.38, 3,104.53 and 770.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070.38 : 3,104.53 = 770.94 : x
2. Step 2: Convert to fraction form
   2,070.38/3,104.53 = 770.94/x
3. Step 3: Cross multiply
   2,070.38x = 3,104.53 × 770.94
4. Step 4: Simplify right side
   2,070.38x = 2,393,404.43
5. Step 5: Solve for x
   x = 2,393,404.43/2,070.38
6. Step 6: Final answer
   x = 1,156.02