Finding the Fourth Proportional to 1,681,128.71, 2,320,556.72 and 992,803.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,128.71 : 2,320,556.72 = 992,803.43 : x
2. Step 2: Convert to fraction form
   1,681,128.71/2,320,556.72 = 992,803.43/x
3. Step 3: Cross multiply
   1,681,128.71x = 2,320,556.72 × 992,803.43
4. Step 4: Simplify right side
   1,681,128.71x = 2,303,856,671,962.92
5. Step 5: Solve for x
   x = 2,303,856,671,962.92/1,681,128.71
6. Step 6: Final answer
   x = 1,370,422.54