Finding the Fourth Proportional to 2,485,688,841, 3,430,201,977.72 and 1,356,666,697.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,485,688,841 : 3,430,201,977.72 = 1,356,666,697.35 : x
2. Step 2: Convert to fraction form
   2,485,688,841/3,430,201,977.72 = 1,356,666,697.35/x
3. Step 3: Cross multiply
   2,485,688,841x = 3,430,201,977.72 × 1,356,666,697.35
4. Step 4: Simplify right side
   2,485,688,841x = 4,653,640,788,356,830,208
5. Step 5: Solve for x
   x = 4,653,640,788,356,830,208/2,485,688,841
6. Step 6: Final answer
   x = 1,872,173,504.42