Finding the Fourth Proportional to 1,064.12, 1,592.07 and 1,061.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,064.12 : 1,592.07 = 1,061.39 : x
2. Step 2: Convert to fraction form
   1,064.12/1,592.07 = 1,061.39/x
3. Step 3: Cross multiply
   1,064.12x = 1,592.07 × 1,061.39
4. Step 4: Simplify right side
   1,064.12x = 1,689,807.18
5. Step 5: Solve for x
   x = 1,689,807.18/1,064.12
6. Step 6: Final answer
   x = 1,587.99