Finding the Fourth Proportional to 1,929.67, 2,891.46 and 1,051.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.67 : 2,891.46 = 1,051.42 : x
2. Step 2: Convert to fraction form
   1,929.67/2,891.46 = 1,051.42/x
3. Step 3: Cross multiply
   1,929.67x = 2,891.46 × 1,051.42
4. Step 4: Simplify right side
   1,929.67x = 3,040,138.87
5. Step 5: Solve for x
   x = 3,040,138.87/1,929.67
6. Step 6: Final answer
   x = 1,575.47