Finding the Fourth Proportional to 1,898.74, 2,620.35 and 1,059.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,898.74 : 2,620.35 = 1,059.42 : x
2. Step 2: Convert to fraction form
   1,898.74/2,620.35 = 1,059.42/x
3. Step 3: Cross multiply
   1,898.74x = 2,620.35 × 1,059.42
4. Step 4: Simplify right side
   1,898.74x = 2,776,051.20
5. Step 5: Solve for x
   x = 2,776,051.20/1,898.74
6. Step 6: Final answer
   x = 1,462.05