Finding the Fourth Proportional to 2,093.58, 3,142.80 and 1,978.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.58 : 3,142.80 = 1,978.56 : x
2. Step 2: Convert to fraction form
   2,093.58/3,142.80 = 1,978.56/x
3. Step 3: Cross multiply
   2,093.58x = 3,142.80 × 1,978.56
4. Step 4: Simplify right side
   2,093.58x = 6,218,218.37
5. Step 5: Solve for x
   x = 6,218,218.37/2,093.58
6. Step 6: Final answer
   x = 2,970.14