Finding the Fourth Proportional to 2,162.70, 2,978.34 and 2,059.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,162.70 : 2,978.34 = 2,059.02 : x
2. Step 2: Convert to fraction form
   2,162.70/2,978.34 = 2,059.02/x
3. Step 3: Cross multiply
   2,162.70x = 2,978.34 × 2,059.02
4. Step 4: Simplify right side
   2,162.70x = 6,132,461.63
5. Step 5: Solve for x
   x = 6,132,461.63/2,162.70
6. Step 6: Final answer
   x = 2,835.56