Finding the Fourth Proportional to 2,116,887.21, 3,171,196.98 and 1,691,308.35

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,887.21 : 3,171,196.98 = 1,691,308.35 : x
2. Step 2: Convert to fraction form
   2,116,887.21/3,171,196.98 = 1,691,308.35/x
3. Step 3: Cross multiply
   2,116,887.21x = 3,171,196.98 × 1,691,308.35
4. Step 4: Simplify right side
   2,116,887.21x = 5,363,471,931,768.78
5. Step 5: Solve for x
   x = 5,363,471,931,768.78/2,116,887.21
6. Step 6: Final answer
   x = 2,533,659.76