Finding the Fourth Proportional to 2,870.52, 4,305.42 and 1,137.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.52 : 4,305.42 = 1,137.48 : x
2. Step 2: Convert to fraction form
   2,870.52/4,305.42 = 1,137.48/x
3. Step 3: Cross multiply
   2,870.52x = 4,305.42 × 1,137.48
4. Step 4: Simplify right side
   2,870.52x = 4,897,329.14
5. Step 5: Solve for x
   x = 4,897,329.14/2,870.52
6. Step 6: Final answer
   x = 1,706.08