Finding the Fourth Proportional to 1,020,139.46, 1,407,769.71 and 590,410.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,020,139.46 : 1,407,769.71 = 590,410.97 : x
2. Step 2: Convert to fraction form
   1,020,139.46/1,407,769.71 = 590,410.97/x
3. Step 3: Cross multiply
   1,020,139.46x = 1,407,769.71 × 590,410.97
4. Step 4: Simplify right side
   1,020,139.46x = 831,162,680,017.72
5. Step 5: Solve for x
   x = 831,162,680,017.72/1,020,139.46
6. Step 6: Final answer
   x = 814,753.97