Finding the Fourth Proportional to 2,640,978.46, 3,644,588.06 and 1,538,381.53

Step by Step Solution

1. Step 1: Write the proportion equation
   2,640,978.46 : 3,644,588.06 = 1,538,381.53 : x
2. Step 2: Convert to fraction form
   2,640,978.46/3,644,588.06 = 1,538,381.53/x
3. Step 3: Cross multiply
   2,640,978.46x = 3,644,588.06 × 1,538,381.53
4. Step 4: Simplify right side
   2,640,978.46x = 5,606,766,955,962.53
5. Step 5: Solve for x
   x = 5,606,766,955,962.53/2,640,978.46
6. Step 6: Final answer
   x = 2,122,988.52