Finding the Fourth Proportional to 1,570.11, 2,168.20 and 1,176.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,570.11 : 2,168.20 = 1,176.45 : x
2. Step 2: Convert to fraction form
   1,570.11/2,168.20 = 1,176.45/x
3. Step 3: Cross multiply
   1,570.11x = 2,168.20 × 1,176.45
4. Step 4: Simplify right side
   1,570.11x = 2,550,778.89
5. Step 5: Solve for x
   x = 2,550,778.89/1,570.11
6. Step 6: Final answer
   x = 1,624.59