Finding the Fourth Proportional to 2,166,521.47, 2,989,763.12 and 1,199,631.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,166,521.47 : 2,989,763.12 = 1,199,631.00 : x
2. Step 2: Convert to fraction form
   2,166,521.47/2,989,763.12 = 1,199,631.00/x
3. Step 3: Cross multiply
   2,166,521.47x = 2,989,763.12 × 1,199,631.00
4. Step 4: Simplify right side
   2,166,521.47x = 3,586,612,503,460.83
5. Step 5: Solve for x
   x = 3,586,612,503,460.83/2,166,521.47
6. Step 6: Final answer
   x = 1,655,470.56