Finding the Fourth Proportional to 2,807.34, 4,210.38 and 1,052.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,807.34 : 4,210.38 = 1,052.28 : x
2. Step 2: Convert to fraction form
   2,807.34/4,210.38 = 1,052.28/x
3. Step 3: Cross multiply
   2,807.34x = 4,210.38 × 1,052.28
4. Step 4: Simplify right side
   2,807.34x = 4,430,498.67
5. Step 5: Solve for x
   x = 4,430,498.67/2,807.34
6. Step 6: Final answer
   x = 1,578.18