Finding the Fourth Proportional to 2,346.77, 3,518.40 and 1,422.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,346.77 : 3,518.40 = 1,422.15 : x
2. Step 2: Convert to fraction form
   2,346.77/3,518.40 = 1,422.15/x
3. Step 3: Cross multiply
   2,346.77x = 3,518.40 × 1,422.15
4. Step 4: Simplify right side
   2,346.77x = 5,003,692.56
5. Step 5: Solve for x
   x = 5,003,692.56/2,346.77
6. Step 6: Final answer
   x = 2,132.16