Finding the Fourth Proportional to 2,167,263.52, 2,990,790.72 and 1,187,194.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,167,263.52 : 2,990,790.72 = 1,187,194.72 : x
2. Step 2: Convert to fraction form
   2,167,263.52/2,990,790.72 = 1,187,194.72/x
3. Step 3: Cross multiply
   2,167,263.52x = 2,990,790.72 × 1,187,194.72
4. Step 4: Simplify right side
   2,167,263.52x = 3,550,650,951,409.00
5. Step 5: Solve for x
   x = 3,550,650,951,409.00/2,167,263.52
6. Step 6: Final answer
   x = 1,638,310.67