Finding the Fourth Proportional to 2,870.40, 4,303.04 and 1,137.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.40 : 4,303.04 = 1,137.84 : x
2. Step 2: Convert to fraction form
   2,870.40/4,303.04 = 1,137.84/x
3. Step 3: Cross multiply
   2,870.40x = 4,303.04 × 1,137.84
4. Step 4: Simplify right side
   2,870.40x = 4,896,171.03
5. Step 5: Solve for x
   x = 4,896,171.03/2,870.40
6. Step 6: Final answer
   x = 1,705.75