Finding the Fourth Proportional to 2,214.77, 3,322.01 and 916.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,214.77 : 3,322.01 = 916.25 : x
2. Step 2: Convert to fraction form
   2,214.77/3,322.01 = 916.25/x
3. Step 3: Cross multiply
   2,214.77x = 3,322.01 × 916.25
4. Step 4: Simplify right side
   2,214.77x = 3,043,777.34
5. Step 5: Solve for x
   x = 3,043,777.34/2,214.77
6. Step 6: Final answer
   x = 1,374.31