Finding the Fourth Proportional to 1,897.63, 2,618.72 and 1,069.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897.63 : 2,618.72 = 1,069.63 : x
2. Step 2: Convert to fraction form
   1,897.63/2,618.72 = 1,069.63/x
3. Step 3: Cross multiply
   1,897.63x = 2,618.72 × 1,069.63
4. Step 4: Simplify right side
   1,897.63x = 2,801,061.47
5. Step 5: Solve for x
   x = 2,801,061.47/1,897.63
6. Step 6: Final answer
   x = 1,476.08