Finding the Fourth Proportional to 1,870.66, 2,809.23 and 1,293.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.66 : 2,809.23 = 1,293.94 : x
2. Step 2: Convert to fraction form
   1,870.66/2,809.23 = 1,293.94/x
3. Step 3: Cross multiply
   1,870.66x = 2,809.23 × 1,293.94
4. Step 4: Simplify right side
   1,870.66x = 3,634,975.07
5. Step 5: Solve for x
   x = 3,634,975.07/1,870.66
6. Step 6: Final answer
   x = 1,943.15