Finding the Fourth Proportional to 1,620,058.06, 2,234,005.59 and 1,391,372.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,620,058.06 : 2,234,005.59 = 1,391,372.56 : x
2. Step 2: Convert to fraction form
   1,620,058.06/2,234,005.59 = 1,391,372.56/x
3. Step 3: Cross multiply
   1,620,058.06x = 2,234,005.59 × 1,391,372.56
4. Step 4: Simplify right side
   1,620,058.06x = 3,108,334,076,812.61
5. Step 5: Solve for x
   x = 3,108,334,076,812.61/1,620,058.06
6. Step 6: Final answer
   x = 1,918,655.98