Finding the Fourth Proportional to 1,927.98, 2,889.54 and 1,061.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,927.98 : 2,889.54 = 1,061.28 : x
2. Step 2: Convert to fraction form
   1,927.98/2,889.54 = 1,061.28/x
3. Step 3: Cross multiply
   1,927.98x = 2,889.54 × 1,061.28
4. Step 4: Simplify right side
   1,927.98x = 3,066,611.01
5. Step 5: Solve for x
   x = 3,066,611.01/1,927.98
6. Step 6: Final answer
   x = 1,590.58