Finding the Fourth Proportional to 1,978.84, 2,726.82 and 1,840.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978.84 : 2,726.82 = 1,840.46 : x
2. Step 2: Convert to fraction form
   1,978.84/2,726.82 = 1,840.46/x
3. Step 3: Cross multiply
   1,978.84x = 2,726.82 × 1,840.46
4. Step 4: Simplify right side
   1,978.84x = 5,018,603.14
5. Step 5: Solve for x
   x = 5,018,603.14/1,978.84
6. Step 6: Final answer
   x = 2,536.13