Finding the Fourth Proportional to 1,870.62, 2,579.43 and 1,273.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.62 : 2,579.43 = 1,273.50 : x
2. Step 2: Convert to fraction form
   1,870.62/2,579.43 = 1,273.50/x
3. Step 3: Cross multiply
   1,870.62x = 2,579.43 × 1,273.50
4. Step 4: Simplify right side
   1,870.62x = 3,284,904.11
5. Step 5: Solve for x
   x = 3,284,904.11/1,870.62
6. Step 6: Final answer
   x = 1,756.05