Finding the Fourth Proportional to 1,897,082.82, 2,618,828.28 and 1,209,676.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897,082.82 : 2,618,828.28 = 1,209,676.05 : x
2. Step 2: Convert to fraction form
   1,897,082.82/2,618,828.28 = 1,209,676.05/x
3. Step 3: Cross multiply
   1,897,082.82x = 2,618,828.28 × 1,209,676.05
4. Step 4: Simplify right side
   1,897,082.82x = 3,167,933,849,378.69
5. Step 5: Solve for x
   x = 3,167,933,849,378.69/1,897,082.82
6. Step 6: Final answer
   x = 1,669,897.50