Finding the Fourth Proportional to 2,100.40, 2,896.68 and 1,402.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.40 : 2,896.68 = 1,402.48 : x
2. Step 2: Convert to fraction form
   2,100.40/2,896.68 = 1,402.48/x
3. Step 3: Cross multiply
   2,100.40x = 2,896.68 × 1,402.48
4. Step 4: Simplify right side
   2,100.40x = 4,062,535.77
5. Step 5: Solve for x
   x = 4,062,535.77/2,100.40
6. Step 6: Final answer
   x = 1,934.17