Finding the Fourth Proportional to 2,172,018.96, 2,997,340.38 and 1,205,128.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,172,018.96 : 2,997,340.38 = 1,205,128.44 : x
2. Step 2: Convert to fraction form
   2,172,018.96/2,997,340.38 = 1,205,128.44/x
3. Step 3: Cross multiply
   2,172,018.96x = 2,997,340.38 × 1,205,128.44
4. Step 4: Simplify right side
   2,172,018.96x = 3,612,180,136,298.41
5. Step 5: Solve for x
   x = 3,612,180,136,298.41/2,172,018.96
6. Step 6: Final answer
   x = 1,663,051.84