Finding the Fourth Proportional to 1,978.46, 2,729.28 and 1,837.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.46 : 2,729.28 = 1,837.74 : x
2. Step 2: Convert to fraction form
   1,978.46/2,729.28 = 1,837.74/x
3. Step 3: Cross multiply
   1,978.46x = 2,729.28 × 1,837.74
4. Step 4: Simplify right side
   1,978.46x = 5,015,707.03
5. Step 5: Solve for x
   x = 5,015,707.03/1,978.46
6. Step 6: Final answer
   x = 2,535.16