Finding the Fourth Proportional to 3,111,219, 4,293,485.10 and 1,680,435

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111,219 : 4,293,485.10 = 1,680,435 : x
2. Step 2: Convert to fraction form
   3,111,219/4,293,485.10 = 1,680,435/x
3. Step 3: Cross multiply
   3,111,219x = 4,293,485.10 × 1,680,435
4. Step 4: Simplify right side
   3,111,219x = 7,214,922,634,018.50
5. Step 5: Solve for x
   x = 7,214,922,634,018.50/3,111,219
6. Step 6: Final answer
   x = 2,319,001.86