Finding the Fourth Proportional to 1,870,721.34, 2,581,412.79 and 1,085,665.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,870,721.34 : 2,581,412.79 = 1,085,665.20 : x
2. Step 2: Convert to fraction form
   1,870,721.34/2,581,412.79 = 1,085,665.20/x
3. Step 3: Cross multiply
   1,870,721.34x = 2,581,412.79 × 1,085,665.20
4. Step 4: Simplify right side
   1,870,721.34x = 2,802,550,032,937.91
5. Step 5: Solve for x
   x = 2,802,550,032,937.91/1,870,721.34
6. Step 6: Final answer
   x = 1,498,111.97