Finding the Fourth Proportional to 1,877.76, 2,802.72 and 1,682.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,877.76 : 2,802.72 = 1,682.88 : x
2. Step 2: Convert to fraction form
   1,877.76/2,802.72 = 1,682.88/x
3. Step 3: Cross multiply
   1,877.76x = 2,802.72 × 1,682.88
4. Step 4: Simplify right side
   1,877.76x = 4,716,641.43
5. Step 5: Solve for x
   x = 4,716,641.43/1,877.76
6. Step 6: Final answer
   x = 2,511.84