Finding the Fourth Proportional to 1,359.73, 1,876.38 and 770.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.73 : 1,876.38 = 770.29 : x
2. Step 2: Convert to fraction form
   1,359.73/1,876.38 = 770.29/x
3. Step 3: Cross multiply
   1,359.73x = 1,876.38 × 770.29
4. Step 4: Simplify right side
   1,359.73x = 1,445,349.17
5. Step 5: Solve for x
   x = 1,445,349.17/1,359.73
6. Step 6: Final answer
   x = 1,062.97