Finding the Fourth Proportional to 1,766.40, 2,641.68 and 1,572.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,766.40 : 2,641.68 = 1,572.56 : x
2. Step 2: Convert to fraction form
   1,766.40/2,641.68 = 1,572.56/x
3. Step 3: Cross multiply
   1,766.40x = 2,641.68 × 1,572.56
4. Step 4: Simplify right side
   1,766.40x = 4,154,200.30
5. Step 5: Solve for x
   x = 4,154,200.30/1,766.40
6. Step 6: Final answer
   x = 2,351.79