Finding the Fourth Proportional to 1,725,852.89, 2,381,574.53 and 990,637.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725,852.89 : 2,381,574.53 = 990,637.31 : x
2. Step 2: Convert to fraction form
   1,725,852.89/2,381,574.53 = 990,637.31/x
3. Step 3: Cross multiply
   1,725,852.89x = 2,381,574.53 × 990,637.31
4. Step 4: Simplify right side
   1,725,852.89x = 2,359,276,581,010.53
5. Step 5: Solve for x
   x = 2,359,276,581,010.53/1,725,852.89
6. Step 6: Final answer
   x = 1,367,020.67