Finding the Fourth Proportional to 1,897.83, 2,620.76 and 1,340.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.83 : 2,620.76 = 1,340.15 : x
2. Step 2: Convert to fraction form
   1,897.83/2,620.76 = 1,340.15/x
3. Step 3: Cross multiply
   1,897.83x = 2,620.76 × 1,340.15
4. Step 4: Simplify right side
   1,897.83x = 3,512,191.71
5. Step 5: Solve for x
   x = 3,512,191.71/1,897.83
6. Step 6: Final answer
   x = 1,850.64