Finding the Fourth Proportional to 1,914.56, 2,870.22 and 874.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,914.56 : 2,870.22 = 874.20 : x
2. Step 2: Convert to fraction form
   1,914.56/2,870.22 = 874.20/x
3. Step 3: Cross multiply
   1,914.56x = 2,870.22 × 874.20
4. Step 4: Simplify right side
   1,914.56x = 2,509,146.32
5. Step 5: Solve for x
   x = 2,509,146.32/1,914.56
6. Step 6: Final answer
   x = 1,310.56