Finding the Fourth Proportional to 2,075.70, 3,116.18 and 1,785.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.70 : 3,116.18 = 1,785.04 : x
2. Step 2: Convert to fraction form
   2,075.70/3,116.18 = 1,785.04/x
3. Step 3: Cross multiply
   2,075.70x = 3,116.18 × 1,785.04
4. Step 4: Simplify right side
   2,075.70x = 5,562,505.95
5. Step 5: Solve for x
   x = 5,562,505.95/2,075.70
6. Step 6: Final answer
   x = 2,679.82