Finding the Fourth Proportional to 2,075.79, 3,113.39 and 670.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.79 : 3,113.39 = 670.02 : x
2. Step 2: Convert to fraction form
   2,075.79/3,113.39 = 670.02/x
3. Step 3: Cross multiply
   2,075.79x = 3,113.39 × 670.02
4. Step 4: Simplify right side
   2,075.79x = 2,086,030.22
5. Step 5: Solve for x
   x = 2,086,030.22/2,075.79
6. Step 6: Final answer
   x = 1,004.93