Finding the Fourth Proportional to 1,870.57, 2,805.86 and 700.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.57 : 2,805.86 = 700.52 : x
2. Step 2: Convert to fraction form
   1,870.57/2,805.86 = 700.52/x
3. Step 3: Cross multiply
   1,870.57x = 2,805.86 × 700.52
4. Step 4: Simplify right side
   1,870.57x = 1,965,564.56
5. Step 5: Solve for x
   x = 1,965,564.56/1,870.57
6. Step 6: Final answer
   x = 1,050.79