Finding the Fourth Proportional to 2,258,985.72, 3,117,681.18 and 1,291,981.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,258,985.72 : 3,117,681.18 = 1,291,981.80 : x
2. Step 2: Convert to fraction form
   2,258,985.72/3,117,681.18 = 1,291,981.80/x
3. Step 3: Cross multiply
   2,258,985.72x = 3,117,681.18 × 1,291,981.80
4. Step 4: Simplify right side
   2,258,985.72x = 4,027,987,342,762.52
5. Step 5: Solve for x
   x = 4,027,987,342,762.52/2,258,985.72
6. Step 6: Final answer
   x = 1,783,095.53