Finding the Fourth Proportional to 2,113,645.53, 2,917,349.69 and 1,298,043.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,113,645.53 : 2,917,349.69 = 1,298,043.57 : x
2. Step 2: Convert to fraction form
   2,113,645.53/2,917,349.69 = 1,298,043.57/x
3. Step 3: Cross multiply
   2,113,645.53x = 2,917,349.69 × 1,298,043.57
4. Step 4: Simplify right side
   2,113,645.53x = 3,786,847,000,055.78
5. Step 5: Solve for x
   x = 3,786,847,000,055.78/2,113,645.53
6. Step 6: Final answer
   x = 1,791,618.77