Finding the Fourth Proportional to 1,991,443.71, 2,748,162.80 and 1,120,212.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,991,443.71 : 2,748,162.80 = 1,120,212.62 : x
2. Step 2: Convert to fraction form
   1,991,443.71/2,748,162.80 = 1,120,212.62/x
3. Step 3: Cross multiply
   1,991,443.71x = 2,748,162.80 × 1,120,212.62
4. Step 4: Simplify right side
   1,991,443.71x = 3,078,526,650,374.54
5. Step 5: Solve for x
   x = 3,078,526,650,374.54/1,991,443.71
6. Step 6: Final answer
   x = 1,545,876.81