Finding the Fourth Proportional to 1,436.22, 2,152.89 and 916.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.22 : 2,152.89 = 916.02 : x
2. Step 2: Convert to fraction form
   1,436.22/2,152.89 = 916.02/x
3. Step 3: Cross multiply
   1,436.22x = 2,152.89 × 916.02
4. Step 4: Simplify right side
   1,436.22x = 1,972,090.30
5. Step 5: Solve for x
   x = 1,972,090.30/1,436.22
6. Step 6: Final answer
   x = 1,373.11