Finding the Fourth Proportional to 1,445.76, 2,168.55 and 471.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,445.76 : 2,168.55 = 471.83 : x
2. Step 2: Convert to fraction form
   1,445.76/2,168.55 = 471.83/x
3. Step 3: Cross multiply
   1,445.76x = 2,168.55 × 471.83
4. Step 4: Simplify right side
   1,445.76x = 1,023,176.10
5. Step 5: Solve for x
   x = 1,023,176.10/1,445.76
6. Step 6: Final answer
   x = 707.71