Finding the Fourth Proportional to 2,870,105.80, 3,960,697.62 and 1,581,066.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870,105.80 : 3,960,697.62 = 1,581,066.76 : x
2. Step 2: Convert to fraction form
   2,870,105.80/3,960,697.62 = 1,581,066.76/x
3. Step 3: Cross multiply
   2,870,105.80x = 3,960,697.62 × 1,581,066.76
4. Step 4: Simplify right side
   2,870,105.80x = 6,262,127,353,393.11
5. Step 5: Solve for x
   x = 6,262,127,353,393.11/2,870,105.80
6. Step 6: Final answer
   x = 2,181,845.48