Finding the Fourth Proportional to 1,646,903.82, 2,272,209.39 and 921,636.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646,903.82 : 2,272,209.39 = 921,636.30 : x
2. Step 2: Convert to fraction form
   1,646,903.82/2,272,209.39 = 921,636.30/x
3. Step 3: Cross multiply
   1,646,903.82x = 2,272,209.39 × 921,636.30
4. Step 4: Simplify right side
   1,646,903.82x = 2,094,150,655,024.86
5. Step 5: Solve for x
   x = 2,094,150,655,024.86/1,646,903.82
6. Step 6: Final answer
   x = 1,271,568.28