Finding the Fourth Proportional to 3,677.77, 5,075.31 and 2,106.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,677.77 : 5,075.31 = 2,106.17 : x
2. Step 2: Convert to fraction form
   3,677.77/5,075.31 = 2,106.17/x
3. Step 3: Cross multiply
   3,677.77x = 5,075.31 × 2,106.17
4. Step 4: Simplify right side
   3,677.77x = 10,689,467.22
5. Step 5: Solve for x
   x = 10,689,467.22/3,677.77
6. Step 6: Final answer
   x = 2,906.51