Finding the Fourth Proportional to 1,897,085.82, 2,618,832.42 and 1,209,679.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,897,085.82 : 2,618,832.42 = 1,209,679.05 : x
2. Step 2: Convert to fraction form
   1,897,085.82/2,618,832.42 = 1,209,679.05/x
3. Step 3: Cross multiply
   1,897,085.82x = 2,618,832.42 × 1,209,679.05
4. Step 4: Simplify right side
   1,897,085.82x = 3,167,946,713,934.80
5. Step 5: Solve for x
   x = 3,167,946,713,934.80/1,897,085.82
6. Step 6: Final answer
   x = 1,669,901.64