Finding the Fourth Proportional to 1,485,139.73, 2,049,141.56 and 840,559.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485,139.73 : 2,049,141.56 = 840,559.91 : x
2. Step 2: Convert to fraction form
   1,485,139.73/2,049,141.56 = 840,559.91/x
3. Step 3: Cross multiply
   1,485,139.73x = 2,049,141.56 × 840,559.91
4. Step 4: Simplify right side
   1,485,139.73x = 1,722,426,230,802.35
5. Step 5: Solve for x
   x = 1,722,426,230,802.35/1,485,139.73
6. Step 6: Final answer
   x = 1,159,773.86