Finding the Fourth Proportional to 1,064.61, 1,467.99 and 770.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.61 : 1,467.99 = 770.04 : x
2. Step 2: Convert to fraction form
   1,064.61/1,467.99 = 770.04/x
3. Step 3: Cross multiply
   1,064.61x = 1,467.99 × 770.04
4. Step 4: Simplify right side
   1,064.61x = 1,130,411.02
5. Step 5: Solve for x
   x = 1,130,411.02/1,064.61
6. Step 6: Final answer
   x = 1,061.81