Finding the Fourth Proportional to 2,166,365.35, 2,989,752.50 and 1,199,585.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,365.35 : 2,989,752.50 = 1,199,585.59 : x
2. Step 2: Convert to fraction form
   2,166,365.35/2,989,752.50 = 1,199,585.59/x
3. Step 3: Cross multiply
   2,166,365.35x = 2,989,752.50 × 1,199,585.59
4. Step 4: Simplify right side
   2,166,365.35x = 3,586,464,007,692.61
5. Step 5: Solve for x
   x = 3,586,464,007,692.61/2,166,365.35
6. Step 6: Final answer
   x = 1,655,521.31