Finding the Fourth Proportional to 1,929.42, 2,662.59 and 1,045.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,929.42 : 2,662.59 = 1,045.21 : x
2. Step 2: Convert to fraction form
   1,929.42/2,662.59 = 1,045.21/x
3. Step 3: Cross multiply
   1,929.42x = 2,662.59 × 1,045.21
4. Step 4: Simplify right side
   1,929.42x = 2,782,965.69
5. Step 5: Solve for x
   x = 2,782,965.69/1,929.42
6. Step 6: Final answer
   x = 1,442.38