Finding the Fourth Proportional to 2,819.84, 3,887.31 and 1,977.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,819.84 : 3,887.31 = 1,977.93 : x
2. Step 2: Convert to fraction form
   2,819.84/3,887.31 = 1,977.93/x
3. Step 3: Cross multiply
   2,819.84x = 3,887.31 × 1,977.93
4. Step 4: Simplify right side
   2,819.84x = 7,688,827.07
5. Step 5: Solve for x
   x = 7,688,827.07/2,819.84
6. Step 6: Final answer
   x = 2,726.69