Finding the Fourth Proportional to 2,870.88, 4,305.90 and 1,369.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.88 : 4,305.90 = 1,369.56 : x
2. Step 2: Convert to fraction form
   2,870.88/4,305.90 = 1,369.56/x
3. Step 3: Cross multiply
   2,870.88x = 4,305.90 × 1,369.56
4. Step 4: Simplify right side
   2,870.88x = 5,897,188.40
5. Step 5: Solve for x
   x = 5,897,188.40/2,870.88
6. Step 6: Final answer
   x = 2,054.14