Finding the Fourth Proportional to 1,957.12, 2,916.61 and 1,897.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,957.12 : 2,916.61 = 1,897.82 : x
2. Step 2: Convert to fraction form
   1,957.12/2,916.61 = 1,897.82/x
3. Step 3: Cross multiply
   1,957.12x = 2,916.61 × 1,897.82
4. Step 4: Simplify right side
   1,957.12x = 5,535,200.79
5. Step 5: Solve for x
   x = 5,535,200.79/1,957.12
6. Step 6: Final answer
   x = 2,828.24