Finding the Fourth Proportional to 1,988.56, 2,962.86 and 1,876.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988.56 : 2,962.86 = 1,876.78 : x
2. Step 2: Convert to fraction form
   1,988.56/2,962.86 = 1,876.78/x
3. Step 3: Cross multiply
   1,988.56x = 2,962.86 × 1,876.78
4. Step 4: Simplify right side
   1,988.56x = 5,560,638.33
5. Step 5: Solve for x
   x = 5,560,638.33/1,988.56
6. Step 6: Final answer
   x = 2,796.31