Finding the Fourth Proportional to 2,075.07, 3,110.98 and 1,415.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.07 : 3,110.98 = 1,415.31 : x
2. Step 2: Convert to fraction form
   2,075.07/3,110.98 = 1,415.31/x
3. Step 3: Cross multiply
   2,075.07x = 3,110.98 × 1,415.31
4. Step 4: Simplify right side
   2,075.07x = 4,402,994.03
5. Step 5: Solve for x
   x = 4,402,994.03/2,075.07
6. Step 6: Final answer
   x = 2,121.85