Finding the Fourth Proportional to 2,131,354.59, 3,199,307.78 and 917,532.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,131,354.59 : 3,199,307.78 = 917,532.01 : x
2. Step 2: Convert to fraction form
   2,131,354.59/3,199,307.78 = 917,532.01/x
3. Step 3: Cross multiply
   2,131,354.59x = 3,199,307.78 × 917,532.01
4. Step 4: Simplify right side
   2,131,354.59x = 2,935,467,281,127.78
5. Step 5: Solve for x
   x = 2,935,467,281,127.78/2,131,354.59
6. Step 6: Final answer
   x = 1,377,277.76