Finding the Fourth Proportional to 1,876.76, 2,801.50 and 1,722.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,876.76 : 2,801.50 = 1,722.68 : x
2. Step 2: Convert to fraction form
   1,876.76/2,801.50 = 1,722.68/x
3. Step 3: Cross multiply
   1,876.76x = 2,801.50 × 1,722.68
4. Step 4: Simplify right side
   1,876.76x = 4,826,088.02
5. Step 5: Solve for x
   x = 4,826,088.02/1,876.76
6. Step 6: Final answer
   x = 2,571.50