Finding the Fourth Proportional to 2,101.32, 3,147.73 and 1,059.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.32 : 3,147.73 = 1,059.87 : x
2. Step 2: Convert to fraction form
   2,101.32/3,147.73 = 1,059.87/x
3. Step 3: Cross multiply
   2,101.32x = 3,147.73 × 1,059.87
4. Step 4: Simplify right side
   2,101.32x = 3,336,181.95
5. Step 5: Solve for x
   x = 3,336,181.95/2,101.32
6. Step 6: Final answer
   x = 1,587.66