Finding the Fourth Proportional to 1,878.84, 2,819.88 and 1,302.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878.84 : 2,819.88 = 1,302.12 : x
2. Step 2: Convert to fraction form
   1,878.84/2,819.88 = 1,302.12/x
3. Step 3: Cross multiply
   1,878.84x = 2,819.88 × 1,302.12
4. Step 4: Simplify right side
   1,878.84x = 3,671,822.15
5. Step 5: Solve for x
   x = 3,671,822.15/1,878.84
6. Step 6: Final answer
   x = 1,954.30