Finding the Fourth Proportional to 2,058,085.53, 3,085,479.72 and 978,056.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058,085.53 : 3,085,479.72 = 978,056.10 : x
2. Step 2: Convert to fraction form
   2,058,085.53/3,085,479.72 = 978,056.10/x
3. Step 3: Cross multiply
   2,058,085.53x = 3,085,479.72 × 978,056.10
4. Step 4: Simplify right side
   2,058,085.53x = 3,017,772,261,572.29
5. Step 5: Solve for x
   x = 3,017,772,261,572.29/2,058,085.53
6. Step 6: Final answer
   x = 1,466,300.70