Finding the Fourth Proportional to 2,920,776.52, 4,381,173.42 and 899,005

Step by Step Solution

1. Step 1: Write the proportion equation
   2,920,776.52 : 4,381,173.42 = 899,005 : x
2. Step 2: Convert to fraction form
   2,920,776.52/4,381,173.42 = 899,005/x
3. Step 3: Cross multiply
   2,920,776.52x = 4,381,173.42 × 899,005
4. Step 4: Simplify right side
   2,920,776.52x = 3,938,696,810,447.10
5. Step 5: Solve for x
   x = 3,938,696,810,447.10/2,920,776.52
6. Step 6: Final answer
   x = 1,348,510.16