Finding the Fourth Proportional to 1,359.52, 1,876.18 and 770.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.52 : 1,876.18 = 770.06 : x
2. Step 2: Convert to fraction form
   1,359.52/1,876.18 = 770.06/x
3. Step 3: Cross multiply
   1,359.52x = 1,876.18 × 770.06
4. Step 4: Simplify right side
   1,359.52x = 1,444,769.79
5. Step 5: Solve for x
   x = 1,444,769.79/1,359.52
6. Step 6: Final answer
   x = 1,062.70