Finding the Fourth Proportional to 1,870.17, 2,805.24 and 700.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870.17 : 2,805.24 = 700.12 : x
2. Step 2: Convert to fraction form
   1,870.17/2,805.24 = 700.12/x
3. Step 3: Cross multiply
   1,870.17x = 2,805.24 × 700.12
4. Step 4: Simplify right side
   1,870.17x = 1,964,004.63
5. Step 5: Solve for x
   x = 1,964,004.63/1,870.17
6. Step 6: Final answer
   x = 1,050.17