Finding the Fourth Proportional to 2,107,890.69, 2,908,719.71 and 1,190,343.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,107,890.69 : 2,908,719.71 = 1,190,343.05 : x
2. Step 2: Convert to fraction form
   2,107,890.69/2,908,719.71 = 1,190,343.05/x
3. Step 3: Cross multiply
   2,107,890.69x = 2,908,719.71 × 1,190,343.05
4. Step 4: Simplify right side
   2,107,890.69x = 3,462,374,279,628.77
5. Step 5: Solve for x
   x = 3,462,374,279,628.77/2,107,890.69
6. Step 6: Final answer
   x = 1,642,577.72