Finding the Fourth Proportional to 1,945.01, 2,649.92 and 1,902.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,945.01 : 2,649.92 = 1,902.17 : x
2. Step 2: Convert to fraction form
   1,945.01/2,649.92 = 1,902.17/x
3. Step 3: Cross multiply
   1,945.01x = 2,649.92 × 1,902.17
4. Step 4: Simplify right side
   1,945.01x = 5,040,575.57
5. Step 5: Solve for x
   x = 5,040,575.57/1,945.01
6. Step 6: Final answer
   x = 2,591.55