Finding the Fourth Proportional to 2,070,774.89, 2,857,635.23 and 1,211,480.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,070,774.89 : 2,857,635.23 = 1,211,480.72 : x
2. Step 2: Convert to fraction form
   2,070,774.89/2,857,635.23 = 1,211,480.72/x
3. Step 3: Cross multiply
   2,070,774.89x = 2,857,635.23 × 1,211,480.72
4. Step 4: Simplify right side
   2,070,774.89x = 3,461,969,985,937.77
5. Step 5: Solve for x
   x = 3,461,969,985,937.77/2,070,774.89
6. Step 6: Final answer
   x = 1,671,823.43