Finding the Fourth Proportional to 1,092,111.30, 1,638,905.06 and 382,145.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092,111.30 : 1,638,905.06 = 382,145.49 : x
2. Step 2: Convert to fraction form
   1,092,111.30/1,638,905.06 = 382,145.49/x
3. Step 3: Cross multiply
   1,092,111.30x = 1,638,905.06 × 382,145.49
4. Step 4: Simplify right side
   1,092,111.30x = 626,300,177,217.18
5. Step 5: Solve for x
   x = 626,300,177,217.18/1,092,111.30
6. Step 6: Final answer
   x = 573,476.51