Finding the Fourth Proportional to 1,900.40, 2,622.56 and 1,061.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.40 : 2,622.56 = 1,061.07 : x
2. Step 2: Convert to fraction form
   1,900.40/2,622.56 = 1,061.07/x
3. Step 3: Cross multiply
   1,900.40x = 2,622.56 × 1,061.07
4. Step 4: Simplify right side
   1,900.40x = 2,782,714.43
5. Step 5: Solve for x
   x = 2,782,714.43/1,900.40
6. Step 6: Final answer
   x = 1,464.28