Finding the Fourth Proportional to 1,870.71, 2,805.30 and 700.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.71 : 2,805.30 = 700.50 : x
2. Step 2: Convert to fraction form
   1,870.71/2,805.30 = 700.50/x
3. Step 3: Cross multiply
   1,870.71x = 2,805.30 × 700.50
4. Step 4: Simplify right side
   1,870.71x = 1,965,112.65
5. Step 5: Solve for x
   x = 1,965,112.65/1,870.71
6. Step 6: Final answer
   x = 1,050.46