Finding the Fourth Proportional to 2,109,265.60, 2,910,965.76 and 1,191,663.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109,265.60 : 2,910,965.76 = 1,191,663.36 : x
2. Step 2: Convert to fraction form
   2,109,265.60/2,910,965.76 = 1,191,663.36/x
3. Step 3: Cross multiply
   2,109,265.60x = 2,910,965.76 × 1,191,663.36
4. Step 4: Simplify right side
   2,109,265.60x = 3,468,891,238,406.55
5. Step 5: Solve for x
   x = 3,468,891,238,406.55/2,109,265.60
6. Step 6: Final answer
   x = 1,644,596.70