Finding the Fourth Proportional to 1,899.14, 2,620.78 and 1,059.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,899.14 : 2,620.78 = 1,059.83 : x
2. Step 2: Convert to fraction form
   1,899.14/2,620.78 = 1,059.83/x
3. Step 3: Cross multiply
   1,899.14x = 2,620.78 × 1,059.83
4. Step 4: Simplify right side
   1,899.14x = 2,777,562.86
5. Step 5: Solve for x
   x = 2,777,562.86/1,899.14
6. Step 6: Final answer
   x = 1,462.54