Finding the Fourth Proportional to 3,111,218, 4,293,483.72 and 1,680,434

Step by Step Solution

1. Step 1: Write the proportion equation
   3,111,218 : 4,293,483.72 = 1,680,434 : x
2. Step 2: Convert to fraction form
   3,111,218/4,293,483.72 = 1,680,434/x
3. Step 3: Cross multiply
   3,111,218x = 4,293,483.72 × 1,680,434
4. Step 4: Simplify right side
   3,111,218x = 7,214,916,021,534.48
5. Step 5: Solve for x
   x = 7,214,916,021,534.48/3,111,218
6. Step 6: Final answer
   x = 2,319,000.48