Finding the Fourth Proportional to 1,926.80, 2,888.98 and 1,061.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.80 : 2,888.98 = 1,061.72 : x
2. Step 2: Convert to fraction form
   1,926.80/2,888.98 = 1,061.72/x
3. Step 3: Cross multiply
   1,926.80x = 2,888.98 × 1,061.72
4. Step 4: Simplify right side
   1,926.80x = 3,067,270.75
5. Step 5: Solve for x
   x = 3,067,270.75/1,926.80
6. Step 6: Final answer
   x = 1,591.90